diff --git a/Gruntfile.js b/Gruntfile.js
index 804e539f..b82e81a6 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -17,7 +17,8 @@ module.exports = function(grunt) {
         },
         uglify: {
             options: {
-                banner: '/*! <%= pkg.name %> <%= grunt.template.today("dd-mm-yyyy") %> */\n'
+                banner: '/*! <%= pkg.name %> <%= grunt.template.today("dd-mm-yyyy") %> */\n',
+                sourceMap: true
             },
             dist: {
                 files: {