diff --git a/packages/angular-cli/models/webpack-build-common.ts b/packages/angular-cli/models/webpack-build-common.ts
index 1b6d43b70455..0258c121d3ba 100644
--- a/packages/angular-cli/models/webpack-build-common.ts
+++ b/packages/angular-cli/models/webpack-build-common.ts
@@ -33,7 +33,8 @@ export function getWebpackCommonConfig(
   return {
     devtool: 'source-map',
     resolve: {
-      extensions: ['.ts', '.js']
+      extensions: ['.ts', '.js'],
+      modules: [path.resolve(projectRoot, 'node_modules')]
     },
     context: path.resolve(__dirname, './'),
     entry: entry,