diff --git a/lib/config-generator.js b/lib/config-generator.js
index 5b634c40..6bba7958 100644
--- a/lib/config-generator.js
+++ b/lib/config-generator.js
@@ -193,7 +193,7 @@ class ConfigGenerator {
         }
 
         if (this.webpackConfig.useTypeScriptLoader) {
-            this.webpackConfig.addLoader({
+            rules.push({
                 test: /\.tsx?$/,
                 exclude: /node_modules/,
                 use: tsLoaderUtil.getLoaders(this.webpackConfig)