diff --git a/cli/config/d2.config.app.js b/cli/config/d2.config.app.js
index 4806d1280..fb32d2704 100644
--- a/cli/config/d2.config.app.js
+++ b/cli/config/d2.config.app.js
@@ -2,7 +2,7 @@ const config = {
     type: 'app',
 
     entryPoints: {
-        app: './src/App',
+        app: './src/App.js',
     },
 }
 
diff --git a/cli/config/d2.config.lib.js b/cli/config/d2.config.lib.js
index 1412b0279..fd5e270de 100644
--- a/cli/config/d2.config.lib.js
+++ b/cli/config/d2.config.lib.js
@@ -2,7 +2,7 @@ const config = {
     type: 'lib',
 
     entryPoints: {
-        lib: './src/index',
+        lib: './src/index.js',
     },
 }