1 files changed, 3 insertions, 1 deletions
diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py
index af72c2b42a..f361e4b22d 100644
--- a/synapse/handlers/message.py
+++ b/synapse/handlers/message.py
@@ -1275,7 +1275,9 @@ class EventCreationHandler:
         for user_id in members:
             if not self.hs.is_mine_id(user_id):
                 continue
-            requester = create_requester(user_id)
+            requester = create_requester(
+                user_id, authenticated_entity=self._server_name
+            )
             try:
                 event, context = await self.create_event(
                     requester,