diff --git a/tests/common.py b/tests/common.py
index aed8d44..9f4b282 100644
--- a/tests/common.py
+++ b/tests/common.py
@@ -143,6 +143,7 @@ class WrappedGuild:
     voice_states: list
 
     large: Optional[bool] = None
+    properties: Optional[dict] = None
 
     async def delete(self):
         await delete_guild(self.id)