diff --git a/test/unit/get-webpack-conf.js b/test/unit/get-webpack-conf.js
index 695aed61f..1c57dd658 100644
--- a/test/unit/get-webpack-conf.js
+++ b/test/unit/get-webpack-conf.js
@@ -83,7 +83,8 @@ const webpackConfig = {
                 'style-loader',
                 'css-loader',
                 'postcss-loader'
-              ]
+              ],
+              js: ['isparta-loader']
             }
           }
         }]