diff --git a/Tests/Config/services.yml b/Tests/Config/services.yml
index 1a541c8fd..a966290d0 100644
--- a/Tests/Config/services.yml
+++ b/Tests/Config/services.yml
@@ -5,4 +5,7 @@ parameters:
 
 services:
     session.storage:
-        class: Symfony\Component\HttpFoundation\Session\Storage\MockArraySessionStorage
\ No newline at end of file
+        class: Symfony\Component\HttpFoundation\Session\Storage\MockArraySessionStorage
+    serializer.metadata.cache:
+        class: BackBee\Rest\Metadata\Cache\FileCache
+        arguments:  ["%bbapp.cache.dir%/"]
\ No newline at end of file