1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py
index d1f5377ceb..6e47fe7867 100644
--- a/synapse/handlers/room.py
+++ b/synapse/handlers/room.py
@@ -568,7 +568,7 @@ class RoomCreationHandler(BaseHandler):
         ):
             raise SynapseError(
                 400,
-                "Not a valid power_level_content_override, did not contain %s"
+                "Not a valid power_level_content_override: 'users' did not contain %s"
                 % (user_id,),
             )