diff --git a/synapse/server_notices/server_notices_manager.py b/synapse/server_notices/server_notices_manager.py
index 8f16d7a076c5..686bddd7a102 100644
--- a/synapse/server_notices/server_notices_manager.py
+++ b/synapse/server_notices/server_notices_manager.py
@@ -209,6 +209,9 @@ async def get_or_create_notice_room_for_user(self, user_id: str) -> str:
         if self._config.servernotices.server_notices_room_topic:
             room_config["topic"] = self._config.servernotices.server_notices_room_topic
 
+
+        # `ignore_forced_encryption` is used to bypass `encryption_enabled_by_default_for_room_type`
+        # setting if it set, since the server notices will not be encrypted anyway.
         room_id, _, _ = await self._room_creation_handler.create_room(
             requester,
             config=room_config,