diff --git a/Gruntfile.js b/Gruntfile.js
index 24927efb0..fcfd37e9c 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -83,6 +83,7 @@ module.exports = function(grunt) {
         'Gruntfile.js',
         'test/**/*.js',
         '!coverage/**/*.js',
+        '!test/coverage/**/*.js',
         'build/*.js'
       ]
     },