diff --git a/packages/react-scripts/config/webpack.config.prod.js b/packages/react-scripts/config/webpack.config.prod.js
index e05c8ae0cb4..c8d1f3b13d9 100644
--- a/packages/react-scripts/config/webpack.config.prod.js
+++ b/packages/react-scripts/config/webpack.config.prod.js
@@ -310,7 +310,7 @@ module.exports = {
           // Adds support for CSS Modules (https://github.com/css-modules/css-modules)
           // using the extension .module.css
           {
-            test: cssRegex,
+            test: cssModuleRegex,
             loader: getStyleLoaders({
               importLoaders: 1,
               minimize: true,