diff --git a/Gruntfile.js b/Gruntfile.js
index e5d79e50bd..9b5db4983f 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -945,7 +945,8 @@ module.exports = function(grunt) {
 				files: {
 					src: [
 						BUILD_DIR + 'wp-{admin,includes}/**/*.js',
-						BUILD_DIR + 'wp-content/themes/twenty*/**/*.js'
+						BUILD_DIR + 'wp-content/themes/twenty*/**/*.js',
+						'!' + BUILD_DIR + 'wp-includes/js/dist/vendor/*.js'
 					]
 				}
 			},