diff --git a/plugin-sass.js b/plugin-sass.js
index 2b6c33e..e4bd30e 100644
--- a/plugin-sass.js
+++ b/plugin-sass.js
@@ -10,13 +10,14 @@ const sass = require('sass');
 class SassResource extends ResourceInterface {
   constructor(compilation, options) {
     super(compilation, options);
-    this.extensions = ['.scss', '.sass'];
+    this.extensions = ['.scss'];
     this.contentType = 'text/css';
   }
 
   async serve(url) {
     return new Promise(async (resolve, reject) => {
       try {
+        // https://sass-lang.com/documentation/js-api
         const result = sass.renderSync({ file: url });
 
         resolve({