diff --git a/src/BBRouter/RouteCollection.php b/src/BBRouter/RouteCollection.php
index e89dad2..a5a7a81 100755
--- a/src/BBRouter/RouteCollection.php
+++ b/src/BBRouter/RouteCollection.php
@@ -275,8 +275,11 @@ class RouteCollection{
         $this->_routes[] = $route;
     }
 
-    function addMiddleware($name = '', $function){
-        $this->_default_middlewares[$name] = $function;
+    /*
+     *
+     */
+    static function addMiddleware($name = '', $function){
+        self::getInstance()->_default_middlewares[$name] = $function;
     }
 
     /*