diff --git a/src/directives.php b/src/directives.php
index 92eab06..4d4b989 100644
--- a/src/directives.php
+++ b/src/directives.php
@@ -107,9 +107,10 @@
     |---------------------------------------------------------------------
     */
 
-    'script' => function ($expression) {
+    'script' => function ($expression, $defer = null) {
         if (! empty($expression)) {
-            return '<script src="'.DirectivesRepository::stripQuotes($expression).'"></script>';
+            list($src, $defer) = explode(',',str_replace(['(',')',' '], '', $expression));
+            return '<script src="'.DirectivesRepository::stripQuotes($src).'"'.$defer.'></script>';
         }
 
         return '<script>';