diff --git a/zulip_bots/zulip_bots/lib_tests.py b/zulip_bots/zulip_bots/lib_tests.py
index 78d814f..504745c 100644
--- a/zulip_bots/zulip_bots/lib_tests.py
+++ b/zulip_bots/zulip_bots/lib_tests.py
@@ -6,7 +6,7 @@ from zulip_bots.lib import (
 )
 
 class FakeClient:
-    def __init__(self):
+    def __init__(self, *args, **kwargs):
         self.storage = dict()
 
     def get_profile(self):