diff --git a/packages/babel-preset-default/CHANGELOG.md b/packages/babel-preset-default/CHANGELOG.md
index 3fe7a9f29b100..2f2ce6a633962 100644
--- a/packages/babel-preset-default/CHANGELOG.md
+++ b/packages/babel-preset-default/CHANGELOG.md
@@ -1,13 +1,17 @@
 ## 4.0.0 (Unreleased)
 
-## Breaking Change
+### Breaking Change
 
 - Removed `babel-core` dependency acting as Babel 7 bridge ([#13922](https://github.com/WordPress/gutenberg/pull/13922). Ensure all references to `babel-core` are replaced with `@babel/core` .
 - Preset updated to include `@wordpress/babel-plugin-import-jsx-pragma` plugin integration ([#13540](https://github.com/WordPress/gutenberg/pull/13540)).
 
+### Bug Fix
+
+- The runtime transform no longer disables [the `regenerator` option](https://babeljs.io/docs/en/babel-plugin-transform-runtime#regenerator). This should resolve issues where a file generated using the preset would assume the presence of a `regeneratorRuntime` object in the global scope. While this is not considered a breaking change, you may be mindful to consider that with transformed output now explicitly importing the runtime regenerator, bundle sizes may increase if you do not otherwise mitigate the additional import by either (a) overriding the option in your own Babel configuration extensions or (b) redefining the resolved value of `@babel/runtime/regenerator` using a feature like [Webpack's `externals` option](https://webpack.js.org/configuration/externals/).
+
 ## 3.0.0 (2018-09-30)
 
-## Breaking Change
+### Breaking Change
 
 - The configured `@babel/preset-env` preset will no longer pass `useBuiltIns: 'usage'` as an option. It is therefore expected that a polyfill serve in its place, if necessary.
 
diff --git a/packages/babel-preset-default/index.js b/packages/babel-preset-default/index.js
index 2c0f3067f4a72..8a893ee9c5ea7 100644
--- a/packages/babel-preset-default/index.js
+++ b/packages/babel-preset-default/index.js
@@ -29,7 +29,6 @@ module.exports = function( api ) {
 			'@babel/plugin-proposal-async-generator-functions',
 			! isTestEnv && [ '@babel/plugin-transform-runtime', {
 				helpers: true,
-				regenerator: false, // We polyfill so we don't need regenerator.
 				useESModules: false,
 			} ],
 		].filter( Boolean ),
diff --git a/packages/babel-preset-default/test/__snapshots__/index.js.snap b/packages/babel-preset-default/test/__snapshots__/index.js.snap
index 5cf000511103d..ed8a87a05dbfe 100644
--- a/packages/babel-preset-default/test/__snapshots__/index.js.snap
+++ b/packages/babel-preset-default/test/__snapshots__/index.js.snap
@@ -2,6 +2,7 @@
 
 exports[`Babel preset default transpilation works properly 1`] = `
 "import _asyncToGenerator from \\"@babel/runtime/helpers/asyncToGenerator\\";
+import _regeneratorRuntime from \\"@babel/runtime/regenerator\\";
 import _awaitAsyncGenerator from \\"@babel/runtime/helpers/awaitAsyncGenerator\\";
 import _wrapAsyncGenerator from \\"@babel/runtime/helpers/wrapAsyncGenerator\\";
 describe('Babel preset default', function () {
@@ -12,8 +13,8 @@ describe('Babel preset default', function () {
   function _foo() {
     _foo = _wrapAsyncGenerator(
     /*#__PURE__*/
-    regeneratorRuntime.mark(function _callee() {
-      return regeneratorRuntime.wrap(function _callee$(_context) {
+    _regeneratorRuntime.mark(function _callee() {
+      return _regeneratorRuntime.wrap(function _callee$(_context) {
         while (1) {
           switch (_context.prev = _context.next) {
             case 0:
@@ -38,9 +39,9 @@ describe('Babel preset default', function () {
   /*#__PURE__*/
   _asyncToGenerator(
   /*#__PURE__*/
-  regeneratorRuntime.mark(function _callee2() {
+  _regeneratorRuntime.mark(function _callee2() {
     var generator;
-    return regeneratorRuntime.wrap(function _callee2$(_context2) {
+    return _regeneratorRuntime.wrap(function _callee2$(_context2) {
       while (1) {
         switch (_context2.prev = _context2.next) {
           case 0: