diff --git a/vetting_bot/bot_commands.py b/vetting_bot/bot_commands.py
index a798ee5..d94552d 100644
--- a/vetting_bot/bot_commands.py
+++ b/vetting_bot/bot_commands.py
@@ -202,7 +202,7 @@ class Command:
         ]
 
         # Max amount of users to invite is 10 here:
-        invitee_chunks = divide_chunks(invitees, 10)
+        invitee_chunks = divide_chunks(list(invitees), 10)
 
         room_resp = await self.client.room_create(
             name=f"Vetting {random_string}",