1 files changed, 1 insertions, 2 deletions
diff --git a/synapse/handlers/_base.py b/synapse/handlers/_base.py
index 90eabb6eb7..d407eaeee9 100644
--- a/synapse/handlers/_base.py
+++ b/synapse/handlers/_base.py
@@ -261,8 +261,7 @@ class BaseHandler(object):
 
                 context = yield state_handler.compute_event_context(
                     builder,
-                    old_state=(prev_member_event,),
-                    outlier=True
+                    old_state=(prev_member_event,)
                 )
 
         if builder.is_state():