diff --git a/package.json b/package.json
index f9c75c60d1..91f463c176 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "build-storybook": "build-storybook -o docs",
     "precommit": "pretty-quick --staged && yarn run test",
     "build":
-      "rm -rf dist && rollup -c rollup.config.js && cp package.json dist/package.json",
+      "rm -rf dist && rollup -c rollup.config.js && node ./scripts/flow-copy-src.js && cp package.json dist/package.json",
     "unit-test": "yarn jest --coverage",
     "e2e": "node ./e2e/e2e.js",
     "build-e2e": "rollup -c rollup.config_e2e.js",
@@ -68,6 +68,7 @@
     "eslint-plugin-prettier": "^2.6.1",
     "eslint-plugin-react": "^7.10.0",
     "flow-bin": "^0.75.0",
+    "flow-copy-source": "^2.0.2",
     "geckodriver": "^1.11.0",
     "husky": "^0.14.3",
     "jest": "^23.3.0",
diff --git a/rollup.config.js b/rollup.config.js
index e4e041b001..22557fa332 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -9,6 +9,8 @@ import commonjs from 'rollup-plugin-commonjs';
 import fs from 'fs';
 import path from 'path';
 
+import flowEntry from './scripts/rollup-plugin-flow-entry';
+
 function getComponents() {
   return fs.readdirSync('./src/components').filter(filename => {
     const {ext, name} = path.parse(filename);
@@ -70,6 +72,7 @@ function getSharedConfig({filePath, name}) {
       }),
       visualizer(),
       filesize(),
+      flowEntry(),
     ],
   };
 }
diff --git a/scripts/flow-copy-src.js b/scripts/flow-copy-src.js
new file mode 100644
index 0000000000..dc17bed966
--- /dev/null
+++ b/scripts/flow-copy-src.js
@@ -0,0 +1,19 @@
+// @flow
+const flowCopySource = require('flow-copy-source');
+
+async function run() {
+  await flowCopySource([`${__dirname}/../src`], `${__dirname}/../dist/src`, {
+    ignore: [
+      '**/*.test.js',
+      '**/*.setup.js',
+      '**/*stories.js',
+      'test/**/*.js',
+      '**/__mocks__/*.js',
+      '**/e2e.js',
+      'coverage/**/*.js',
+      '**/*examples.js',
+    ],
+  });
+}
+
+run();
diff --git a/scripts/rollup-plugin-flow-entry.js b/scripts/rollup-plugin-flow-entry.js
new file mode 100644
index 0000000000..47baa13ce6
--- /dev/null
+++ b/scripts/rollup-plugin-flow-entry.js
@@ -0,0 +1,87 @@
+// @flow
+import fs from 'fs';
+import path from 'path';
+
+/*
+We can consider this as well:
+https://github.com/RichieAHB/rollup-plugin-flow-defs/blob/master/src/index.js
+This code is inspired by that npm package anyway.
+
+The reason why we don't use that is because:
+* Package depends on `mkdirp`. It's just one dependency, but it's an extra dep for such a simple thing to do.
+* We cannot override the output path for the flow entry file content
+
+Hence, it's easier to write our own so we can do full modifications as needed.
+ */
+
+function getFlowFileContent(filePath) {
+  /*
+  Since we're running this during rollup process, it will be relative to the main `src` directory.
+  We do not want that.
+  We want to make it point to the `src` directory that will be created with our scripts later in the build process
+  from `flow-copy-src.js`.
+
+  Hence, instead of `../src` and `../../src`, they will become `./src` and `../src` respectively.
+  */
+
+  // Find `../` pattern in the `filePath`
+  const regex = new RegExp(/\.\.\//, 'g');
+  // We want to know how many `../` is inside the file path
+  const matched = filePath.match(regex);
+  if (matched && matched.length > 0) {
+    // Check whether it's only one `../`
+    if (matched.length === 1) {
+      // Only 1, replace it with `./`
+      filePath = filePath.replace('../', './');
+    } else {
+      // Must be more than 1, then just remove one `../`
+      filePath = filePath.replace('../', '');
+    }
+  }
+  // Remove the `.js` extension, if any, so that it could point to `.js.flow` automatically
+  filePath = filePath.replace('.js', '');
+  return `// @flow
+export * from '${filePath}';`;
+}
+
+export default function flowEntry() {
+  let input;
+  return {
+    name: 'rollup-plugin-flow-entry',
+    // $FlowFixMe can't have annotations here since it's for rollup
+    options(opts) {
+      input = opts.input;
+    },
+    // $FlowFixMe can't have annotations here since it's for rollup
+    async generateBundle(opts) {
+      const {file = ''} = opts || {};
+
+      // Create file path if does not exist
+      await new Promise(resolve => {
+        const dirname = path.dirname(file);
+        if (!fs.existsSync(dirname)) {
+          fs.mkdirSync(dirname);
+        }
+        resolve('ok');
+      });
+
+      await new Promise((resolve, reject) => {
+        /*
+        path.dirname(input); // src/components/popover
+        path.basename(input); // index.js
+        path.dirname(file); // this is output, `dist/popover`
+         */
+        const relativePath = path.join(
+          path.relative(path.dirname(file), path.dirname(input)),
+          path.basename(input),
+        );
+        fs.writeFile(`${file}.flow`, getFlowFileContent(relativePath), err => {
+          if (err) {
+            reject(err);
+          }
+          resolve('ok');
+        });
+      });
+    },
+  };
+}
diff --git a/src/components/checkbox/index.js b/src/components/checkbox/index.js
index e240b743f4..071506732d 100644
--- a/src/components/checkbox/index.js
+++ b/src/components/checkbox/index.js
@@ -10,3 +10,6 @@ export {
   Label as StyledLabel,
   Input as StyledInput,
 } from './styled-components';
+
+// Flow
+export * from './types';
diff --git a/src/components/input/index.js b/src/components/input/index.js
index 8f593e8b67..a1b439d794 100644
--- a/src/components/input/index.js
+++ b/src/components/input/index.js
@@ -13,3 +13,6 @@ export {
   Caption as StyledCaption,
 } from './styled-components';
 export {STATE_CHANGE_TYPE, ADJOINED, SIZE} from './constants';
+
+// Flow
+export * from './types';
diff --git a/src/components/popover/index.js b/src/components/popover/index.js
index f32311034a..ca53bd5b56 100644
--- a/src/components/popover/index.js
+++ b/src/components/popover/index.js
@@ -16,3 +16,6 @@ export {
   Inner as StyledInner,
   Padding as StyledPadding,
 } from './styled-components';
+
+// Flow
+export * from './types';
diff --git a/src/components/tooltip/index.js b/src/components/tooltip/index.js
index a9234188e1..f4a56fe888 100644
--- a/src/components/tooltip/index.js
+++ b/src/components/tooltip/index.js
@@ -15,3 +15,6 @@ export {
   Body as StyledBody,
   Inner as StyledInner,
 } from './styled-components';
+
+// Flow
+export * from './types';
diff --git a/yarn.lock b/yarn.lock
index e0d1c2c94f..56a4bd72aa 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2319,7 +2319,7 @@ chokidar@^1.6.1:
   optionalDependencies:
     fsevents "^1.0.0"
 
-chokidar@^2.0.2:
+chokidar@^2.0.0, chokidar@^2.0.2:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-2.0.4.tgz#356ff4e2b0e8e43e322d18a372460bbcf3accd26"
   dependencies:
@@ -2934,6 +2934,12 @@ decamelize@^1.0.0, decamelize@^1.1.0, decamelize@^1.1.1, decamelize@^1.1.2:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
 
+decamelize@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-2.0.0.tgz#656d7bbc8094c4c788ea53c5840908c9c7d063c7"
+  dependencies:
+    xregexp "4.0.0"
+
 decode-uri-component@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
@@ -4053,6 +4059,12 @@ find-up@^2.0.0, find-up@^2.1.0:
   dependencies:
     locate-path "^2.0.0"
 
+find-up@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/find-up/-/find-up-3.0.0.tgz#49169f1d7993430646da61ecc5ae355c21c97b73"
+  dependencies:
+    locate-path "^3.0.0"
+
 flat-cache@^1.2.1:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/flat-cache/-/flat-cache-1.3.0.tgz#d3030b32b38154f4e3b7e9c709f490f7ef97c481"
@@ -4070,6 +4082,16 @@ flow-bin@^0.75.0:
   version "0.75.0"
   resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.75.0.tgz#b96d1ee99d3b446a3226be66b4013224ce9df260"
 
+flow-copy-source@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/flow-copy-source/-/flow-copy-source-2.0.2.tgz#096e579a9bb63a38afc5d4dd68ac847a5be27594"
+  dependencies:
+    chokidar "^2.0.0"
+    fs-extra "^7.0.0"
+    glob "^7.0.0"
+    kefir "^3.7.3"
+    yargs "^12.0.1"
+
 flush-write-stream@^1.0.0:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/flush-write-stream/-/flush-write-stream-1.0.3.tgz#c5d586ef38af6097650b49bc41b55fabb19f35bd"
@@ -4128,6 +4150,14 @@ fs-constants@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs-constants/-/fs-constants-1.0.0.tgz#6be0de9be998ce16af8afc24497b9ee9b7ccd9ad"
 
+fs-extra@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-7.0.0.tgz#8cc3f47ce07ef7b3593a11b9fb245f7e34c041d6"
+  dependencies:
+    graceful-fs "^4.1.2"
+    jsonfile "^4.0.0"
+    universalify "^0.1.0"
+
 fs-minipass@^1.2.5:
   version "1.2.5"
   resolved "https://registry.yarnpkg.com/fs-minipass/-/fs-minipass-1.2.5.tgz#06c277218454ec288df77ada54a03b8702aacb9d"
@@ -4377,7 +4407,7 @@ got@5.6.0:
     unzip-response "^1.0.0"
     url-parse-lax "^1.0.0"
 
-graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.3, graceful-fs@^4.1.4:
+graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.3, graceful-fs@^4.1.4, graceful-fs@^4.1.6:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
 
@@ -5671,6 +5701,12 @@ json5@^0.5.0, json5@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
 
+jsonfile@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-4.0.0.tgz#8771aae0799b64076b76640fca058f9c10e33ecb"
+  optionalDependencies:
+    graceful-fs "^4.1.6"
+
 jsonify@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
@@ -5704,6 +5740,12 @@ jszip@^3.1.3:
     pako "~1.0.2"
     readable-stream "~2.0.6"
 
+kefir@^3.7.3:
+  version "3.8.3"
+  resolved "https://registry.yarnpkg.com/kefir/-/kefir-3.8.3.tgz#8e0ab10084ed8a01cbb5d4f7f18a0b859f7b9bd9"
+  dependencies:
+    symbol-observable "1.0.4"
+
 kew@^0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/kew/-/kew-0.7.0.tgz#79d93d2d33363d6fdd2970b335d9141ad591d79b"
@@ -5823,6 +5865,13 @@ locate-path@^2.0.0:
     p-locate "^2.0.0"
     path-exists "^3.0.0"
 
+locate-path@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-3.0.0.tgz#dbec3b3ab759758071b58fe59fc41871af21400e"
+  dependencies:
+    p-locate "^3.0.0"
+    path-exists "^3.0.0"
+
 lodash-es@^4.2.1:
   version "4.17.10"
   resolved "https://registry.yarnpkg.com/lodash-es/-/lodash-es-4.17.10.tgz#62cd7104cdf5dd87f235a837f0ede0e8e5117e05"
@@ -6752,12 +6801,24 @@ p-limit@^1.1.0:
   dependencies:
     p-try "^1.0.0"
 
+p-limit@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-2.0.0.tgz#e624ed54ee8c460a778b3c9f3670496ff8a57aec"
+  dependencies:
+    p-try "^2.0.0"
+
 p-locate@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-2.0.0.tgz#20a0103b222a70c8fd39cc2e580680f3dde5ec43"
   dependencies:
     p-limit "^1.1.0"
 
+p-locate@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-3.0.0.tgz#322d69a05c0264b25997d9f40cd8a891ab0064a4"
+  dependencies:
+    p-limit "^2.0.0"
+
 p-map@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/p-map/-/p-map-1.2.0.tgz#e4e94f311eabbc8633a1e79908165fca26241b6b"
@@ -6766,6 +6827,10 @@ p-try@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/p-try/-/p-try-1.0.0.tgz#cbc79cdbaf8fd4228e13f621f2b1a237c1b207b3"
 
+p-try@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/p-try/-/p-try-2.0.0.tgz#85080bb87c64688fa47996fe8f7dfbe8211760b1"
+
 pako@~1.0.2, pako@~1.0.5:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.6.tgz#0101211baa70c4bca4a0f63f2206e97b7dfaf258"
@@ -8861,6 +8926,10 @@ symbol-observable@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.0.1.tgz#8340fc4702c3122df5d22288f88283f513d3fdd4"
 
+symbol-observable@1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.0.4.tgz#29bf615d4aa7121bdd898b22d4b3f9bc4e2aa03d"
+
 symbol-observable@^1.0.3:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.2.0.tgz#c22688aed4eab3cdc2dfeacbb561660560a00804"
@@ -9207,6 +9276,10 @@ unique-slug@^2.0.0:
   dependencies:
     imurmurhash "^0.1.4"
 
+universalify@^0.1.0:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/universalify/-/universalify-0.1.2.tgz#b646f69be3942dabcecc9d6639c80dc105efaa66"
+
 unpipe@1.0.0, unpipe@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
@@ -9589,6 +9662,10 @@ xmlbuilder@~9.0.1:
   version "9.0.7"
   resolved "https://registry.yarnpkg.com/xmlbuilder/-/xmlbuilder-9.0.7.tgz#132ee63d2ec5565c557e20f4c22df9aca686b10d"
 
+xregexp@4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/xregexp/-/xregexp-4.0.0.tgz#e698189de49dd2a18cc5687b05e17c8e43943020"
+
 xtend@^4.0.0, xtend@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
@@ -9597,7 +9674,7 @@ y18n@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
 
-y18n@^4.0.0:
+"y18n@^3.2.1 || ^4.0.0", y18n@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
 
@@ -9609,6 +9686,12 @@ yallist@^3.0.0, yallist@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.0.2.tgz#8452b4bb7e83c7c188d8041c1a837c773d6d8bb9"
 
+yargs-parser@^10.1.0:
+  version "10.1.0"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-10.1.0.tgz#7202265b89f7e9e9f2e5765e0fe735a905edbaa8"
+  dependencies:
+    camelcase "^4.1.0"
+
 yargs-parser@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-7.0.0.tgz#8d0ac42f16ea55debd332caf4c4038b3e3f5dfd9"
@@ -9638,6 +9721,23 @@ yargs@^11.0.0:
     y18n "^3.2.1"
     yargs-parser "^9.0.2"
 
+yargs@^12.0.1:
+  version "12.0.1"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-12.0.1.tgz#6432e56123bb4e7c3562115401e98374060261c2"
+  dependencies:
+    cliui "^4.0.0"
+    decamelize "^2.0.0"
+    find-up "^3.0.0"
+    get-caller-file "^1.0.1"
+    os-locale "^2.0.0"
+    require-directory "^2.1.1"
+    require-main-filename "^1.0.1"
+    set-blocking "^2.0.0"
+    string-width "^2.0.0"
+    which-module "^2.0.0"
+    y18n "^3.2.1 || ^4.0.0"
+    yargs-parser "^10.1.0"
+
 yargs@^8.0.2:
   version "8.0.2"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-8.0.2.tgz#6299a9055b1cefc969ff7e79c1d918dceb22c360"