diff --git a/packages/ckeditor5-admonition/package.json b/packages/ckeditor5-admonition/package.json
index e25a35048..3506aeba7 100644
--- a/packages/ckeditor5-admonition/package.json
+++ b/packages/ckeditor5-admonition/package.json
@@ -18,7 +18,7 @@
   "exports": {
     ".": {
       "types": "./dist/index.d.ts",
-      "import": "./dist/index.js"
+      "import": "./src/index.ts"
     },
     "./*": "./dist/*",
     "./browser/*": null,
diff --git a/packages/ckeditor5-footnotes/package.json b/packages/ckeditor5-footnotes/package.json
index e22ff6979..a4d9c0517 100644
--- a/packages/ckeditor5-footnotes/package.json
+++ b/packages/ckeditor5-footnotes/package.json
@@ -18,7 +18,7 @@
   "exports": {
     ".": {
       "types": "./dist/index.d.ts",
-      "import": "./dist/index.js"
+      "import": "./src/index.ts"
     },
     "./*": "./dist/*",
     "./browser/*": null,
diff --git a/packages/ckeditor5-keyboard-marker/package.json b/packages/ckeditor5-keyboard-marker/package.json
index 4b0d2676e..91da987e5 100644
--- a/packages/ckeditor5-keyboard-marker/package.json
+++ b/packages/ckeditor5-keyboard-marker/package.json
@@ -18,7 +18,7 @@
   "exports": {
     ".": {
       "types": "./dist/index.d.ts",
-      "import": "./dist/index.js"
+      "import": "./src/index.ts"
     },
     "./*": "./dist/*",
     "./browser/*": null,
diff --git a/packages/ckeditor5-math/package.json b/packages/ckeditor5-math/package.json
index 5e9f639a6..e6591f407 100644
--- a/packages/ckeditor5-math/package.json
+++ b/packages/ckeditor5-math/package.json
@@ -19,7 +19,7 @@
   "exports": {
     ".": {
       "types": "./dist/index.d.ts",
-      "import": "./dist/index.js"
+      "import": "./src/index.ts"
     },
     "./*": "./dist/*",
     "./browser/*": null,
diff --git a/packages/ckeditor5-mermaid/package.json b/packages/ckeditor5-mermaid/package.json
index 3543ca6e1..1ce59389c 100644
--- a/packages/ckeditor5-mermaid/package.json
+++ b/packages/ckeditor5-mermaid/package.json
@@ -18,7 +18,7 @@
   "exports": {
     ".": {
       "types": "./dist/index.d.ts",
-      "import": "./dist/index.js"
+      "import": "./src/index.ts"
     },
     "./*": "./dist/*",
     "./browser/*": null,