diff --git a/synapse/api/constants.py b/synapse/api/constants.py
index 60a0d336d..1423986c1 100644
--- a/synapse/api/constants.py
+++ b/synapse/api/constants.py
@@ -77,6 +77,7 @@ class EventTypes(object):
 
     RoomHistoryVisibility = "m.room.history_visibility"
     CanonicalAlias = "m.room.canonical_alias"
+    RoomAvatar = "m.room.avatar"
 
     # These are used for validation
     Message = "m.room.message"
diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py
index 8108c2763..c5d1001b5 100644
--- a/synapse/handlers/room.py
+++ b/synapse/handlers/room.py
@@ -247,10 +247,11 @@ class RoomCreationHandler(BaseHandler):
                 },
                 "users_default": 0,
                 "events": {
-                    EventTypes.Name: 100,
+                    EventTypes.Name: 50,
                     EventTypes.PowerLevels: 100,
                     EventTypes.RoomHistoryVisibility: 100,
-                    EventTypes.CanonicalAlias: 100,
+                    EventTypes.CanonicalAlias: 50,
+                    EventTypes.RoomAvatar: 50,
                 },
                 "events_default": 0,
                 "state_default": 50,