diff --git a/externallinks.php b/externallinks.php
index 3ab03b0..8225fb9 100644
--- a/externallinks.php
+++ b/externallinks.php
@@ -11,11 +11,11 @@ class YellowExternallinks {
     }
 
     // Insert script into header
-    public function onExtra($name) {
-        $output = "";
+    public function onParsePageExtra($page, $name) {
+        $output = null;
         if ($name == "header") {
-            $location = $this->yellow->system->get("coreServerBase") . "system/workers/externallinks.js";
-            $output .= "<script type=\"text/javascript\" src=\"{$location}\" async></script>\n";
+            $assetLocation = $this->yellow->system->get("coreServerBase") . $this->yellow->system->get("coreAssetLocation");
+            $output .= "<script type=\"text/javascript\" defer=\"defer\" src=\"{$assetLocation}externallinks.js\"></script>\n";
         }
         return $output;
     }