diff --git a/libraries/cms/router/router.php b/libraries/cms/router/router.php
index 5c26768077eb4..3cd089ae20d60 100644
--- a/libraries/cms/router/router.php
+++ b/libraries/cms/router/router.php
@@ -636,7 +636,7 @@ protected function processBuildRules(&$uri, $stage = self::PROCESS_DURING)
 
 		foreach ($this->_rules['build' . $stage] as $rule)
 		{
-			$rule($this, $uri);
+			call_user_func_array($rule, array(&$this, &$uri));
 		}
 	}