diff --git a/.storybook/webpack.config.js b/.storybook/webpack.config.js
index 2422efe1..311784ec 100644
--- a/.storybook/webpack.config.js
+++ b/.storybook/webpack.config.js
@@ -3,7 +3,7 @@ const baseConfig = require('../webpack.config')
 module.exports = storybookBaseConfig =>
   Object.assign({}, storybookBaseConfig, {
     resolve: baseConfig.resolve,
-    module: Object.assign({}, storybookBaseConfig, {
+    module: Object.assign({}, storybookBaseConfig.module, {
       loaders: storybookBaseConfig.module.loaders.concat(baseConfig.module.loaders)
     })
   })