diff --git a/wp-includes/class.wp-scripts.php b/wp-includes/class.wp-scripts.php
index ceaaad565..039a4e3a1 100644
--- a/wp-includes/class.wp-scripts.php
+++ b/wp-includes/class.wp-scripts.php
@@ -31,7 +31,7 @@ class WP_Scripts extends WP_Dependencies {
 	var $default_dirs;
 
 	function __construct() {
-		if ( did_action( 'init' ) )
+		if ( ! function_exists( 'did_action' ) || did_action( 'init' ) )
 			$this->init();
 		else
 			add_action( 'init', array( $this, 'init' ), 0 );