diff --git a/product/ERP5Type/dynamic/lazy_class.py b/product/ERP5Type/dynamic/lazy_class.py
index dd66588de075c377eda6074b6000f5110e0d389a..c92078d976ddb98384dca83c180d782d710ee5bc 100644
--- a/product/ERP5Type/dynamic/lazy_class.py
+++ b/product/ERP5Type/dynamic/lazy_class.py
@@ -342,6 +342,7 @@ class PortalTypeMetaClass(GhostBaseMetaClass, PropertyHolder):
 
       except Exception:
         import traceback; traceback.print_exc()
+        raise
     finally:
       ERP5Base.aq_method_lock.release()