diff --git a/docs/en/configurations/pre-processors.md b/docs/en/configurations/pre-processors.md
index 491af9655..49b80b140 100644
--- a/docs/en/configurations/pre-processors.md
+++ b/docs/en/configurations/pre-processors.md
@@ -28,7 +28,7 @@ Contrary to what its name indicates, [*sass*-loader](https://github.com/jtangeld
   loader: 'vue-loader',
   options: {
     loaders: {
-      scss: 'vue-style-loader!css-loader!sass-loader' // <style lang="scss">
+      scss: 'vue-style-loader!css-loader!sass-loader', // <style lang="scss">
       sass: 'vue-style-loader!css-loader!sass-loader?indentedSyntax' // <style lang="sass">
     }
   }