diff --git a/lib/base.php b/lib/base.php
index 631ed4fcce619bb782fe1ba35a4cc5e9bca5ece0..888dc265d6426e6116a0f663f37c9fc3442769ed 100644
--- a/lib/base.php
+++ b/lib/base.php
@@ -83,6 +83,9 @@ class OC{
 		elseif(strpos($className,'OCP\\')===0){
 			require_once 'public/'.strtolower(str_replace('\\','/',substr($className,3)) . '.php');
 		}
+		elseif(strpos($className,'OCA\\')===0){
+			require_once 'apps/'.strtolower(str_replace('\\','/',substr($className,3)) . '.php');
+		}
 		elseif(strpos($className,'Sabre_')===0) {
 			require_once str_replace('_','/',$className) . '.php';
 		}