1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/third_party_rules/access_rules.py b/synapse/third_party_rules/access_rules.py
index 2635200989..33496519c3 100644
--- a/synapse/third_party_rules/access_rules.py
+++ b/synapse/third_party_rules/access_rules.py
@@ -575,7 +575,7 @@ class RoomAccessRules(object):
                 threepid_invite_tokens,
             )
 
-        return existing_members, len(threepid_invite_tokens)
+        return existing_members, list(threepid_invite_tokens)
 
     @staticmethod
     def _is_invite_from_threepid(invite, threepid_invite_token):