diff --git a/packages/anzen/package.json b/packages/anzen/package.json
index 0cd7fc6..e6e9dc3 100644
--- a/packages/anzen/package.json
+++ b/packages/anzen/package.json
@@ -10,7 +10,8 @@
       "import": "./dist/esm/anzen.js",
       "require": "./dist/cjs/anzen.js",
       "types": "./dist/types/anzen.d.ts"
-    }
+    },
+    "./src": "./src/anzen.ts"
   },
   "scripts": {
     "build": "rm -rf dist && tsc --build ./tsconfig_esm.json && tsc --project ./tsconfig_cjs.json",
diff --git a/packages/ayamari/package.json b/packages/ayamari/package.json
index e8a6b59..4b21d33 100644
--- a/packages/ayamari/package.json
+++ b/packages/ayamari/package.json
@@ -10,7 +10,8 @@
       "import": "./dist/esm/ayamari.js",
       "require": "./dist/cjs/ayamari.js",
       "types": "./dist/types/ayamari.d.ts"
-    }
+    },
+    "./src": "./src/ayamari.ts"
   },
   "scripts": {
     "build": "rm -rf dist && tsc --build ./tsconfig_esm.json && tsc --project ./tsconfig_cjs.json",
diff --git a/packages/daisugi/package.json b/packages/daisugi/package.json
index 0445398..f5a402a 100644
--- a/packages/daisugi/package.json
+++ b/packages/daisugi/package.json
@@ -10,7 +10,8 @@
       "import": "./dist/esm/daisugi.js",
       "require": "./dist/cjs/daisugi.js",
       "types": "./dist/types/daisugi.d.ts"
-    }
+    },
+    "./src": "./src/daisugi.ts"
   },
   "scripts": {
     "build": "rm -rf dist && tsc --build ./tsconfig_esm.json && tsc --project ./tsconfig_cjs.json",
diff --git a/packages/kado/package.json b/packages/kado/package.json
index c9de1b3..00d9ba3 100644
--- a/packages/kado/package.json
+++ b/packages/kado/package.json
@@ -10,7 +10,8 @@
       "import": "./dist/esm/kado.js",
       "require": "./dist/cjs/kado.js",
       "types": "./dist/types/kado.d.ts"
-    }
+    },
+    "./src": "./src/kado.ts"
   },
   "scripts": {
     "build": "rm -rf dist && tsc --build ./tsconfig_esm.json && tsc --project ./tsconfig_cjs.json",
diff --git a/packages/kintsugi/package.json b/packages/kintsugi/package.json
index 7a1c91a..a1387a9 100644
--- a/packages/kintsugi/package.json
+++ b/packages/kintsugi/package.json
@@ -10,7 +10,8 @@
       "import": "./dist/esm/kintsugi.js",
       "require": "./dist/cjs/kintsugi.js",
       "types": "./dist/types/kintsugi.d.ts"
-    }
+    },
+    "./src": "./src/kintsugi.ts"
   },
   "scripts": {
     "build": "rm -rf dist && tsc --build ./tsconfig_esm.json && tsc --project ./tsconfig_cjs.json",
diff --git a/packages/land/package.json b/packages/land/package.json
index b3be55b..3c848ec 100644
--- a/packages/land/package.json
+++ b/packages/land/package.json
@@ -10,7 +10,8 @@
       "import": "./dist/esm/land.js",
       "require": "./dist/cjs/land.js",
       "types": "./dist/types/land.d.ts"
-    }
+    },
+    "./src": "./src/land.ts"
   },
   "scripts": {
     "build": "rm -rf dist && tsc --build ./tsconfig_esm.json && tsc --project ./tsconfig_cjs.json",
diff --git a/packages/nekobasu/package.json b/packages/nekobasu/package.json
index 6a62769..7730e1b 100644
--- a/packages/nekobasu/package.json
+++ b/packages/nekobasu/package.json
@@ -10,7 +10,8 @@
       "import": "./dist/esm/nekobasu.js",
       "require": "./dist/cjs/nekobasu.js",
       "types": "./dist/types/nekobasu.d.ts"
-    }
+    },
+    "./src": "./src/nekobasu.ts"
   },
   "scripts": {
     "build": "rm -rf dist && tsc --build ./tsconfig_esm.json && tsc --project ./tsconfig_cjs.json",
diff --git a/packages/yomeru/package.json b/packages/yomeru/package.json
index a8be63b..1d8eae0 100644
--- a/packages/yomeru/package.json
+++ b/packages/yomeru/package.json
@@ -10,7 +10,8 @@
       "import": "./dist/esm/yomeru.js",
       "require": "./dist/cjs/yomeru.js",
       "types": "./dist/types/yomeru.d.ts"
-    }
+    },
+    "./src": "./src/yomeru.ts"
   },
   "scripts": {
     "build": "rm -rf dist && tsc --build ./tsconfig_esm.json && tsc --project ./tsconfig_cjs.json",