diff --git a/src/paperless_mail/tests/test_mail.py b/src/paperless_mail/tests/test_mail.py
index 8488ac65d..e021abaf2 100644
--- a/src/paperless_mail/tests/test_mail.py
+++ b/src/paperless_mail/tests/test_mail.py
@@ -118,7 +118,7 @@ class BogusMailBox(AbstractContextManager):
         if username != self.USERNAME or access_token != self.ACCESS_TOKEN:
             raise MailboxLoginError("BAD", "OK")
 
-    def fetch(self, criteria, mark_seen, charset=""):
+    def fetch(self, criteria, mark_seen, charset="", bulk):
         msg = self.messages
 
         criteria = str(criteria).strip("()").split(" ")