diff --git a/dynamicweb2/backend.py b/dynamicweb2/backend.py
index 4b8f1a2..5e96b83 100644
--- a/dynamicweb2/backend.py
+++ b/dynamicweb2/backend.py
@@ -6,8 +6,8 @@ logger = logging.getLogger(__name__)
 
 
 class UngleichLDAPBackend(ModelBackend):
-    def authenticate(self, username=None, password=None, **kwargs):
-        user = super().authenticate(username, password, **kwargs)
+    def authenticate(self, request, username=None, password=None, **kwargs):
+        user = super().authenticate(request, username=username, password=password, **kwargs)
         if user:
             user.create_ldap_account(password)
         else: