diff --git a/extension.driver.php b/extension.driver.php
index db458aa..09a2075 100644
--- a/extension.driver.php
+++ b/extension.driver.php
@@ -47,8 +47,8 @@ public function addScriptToHead($context)
 			$idEntry= isset($callback['context']['entry_id']) ? '"'.$callback['context']['entry_id'].'"' : 'false';
 			
 			// User information:
-			$javaScript.= "var user_id   = ".Administration::instance()->Author->get('id').";\n";
-			$javaScript.= "var user_type = '".Administration::instance()->Author->get('user_type')."';\n";
+			$javaScript.= "var user_id   = ".Symphony::Engine()->Author()->get('id').";\n";
+			$javaScript.= "var user_type = '".Symphony::Engine()->Author()->get('user_type')."';\n";
 			$javaScript.= "var driver    = ".$driver.";\n";
 			$javaScript.= "var action    = ".$action.";\n";
 			$javaScript.= "var section   = ".$section.";\n";
@@ -61,4 +61,4 @@ public function addScriptToHead($context)
             Administration::instance()->Page->addStylesheetToHead(URL.'/extensions/backend_add_script/assets/custom.css');
 		}	
 	}
-?>
+?>
\ No newline at end of file