1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/push/mailer.py b/synapse/push/mailer.py
index 491a09b71d..79e0627b6a 100644
--- a/synapse/push/mailer.py
+++ b/synapse/push/mailer.py
@@ -247,7 +247,7 @@ class Mailer:
 
         try:
             user_display_name = await self.store.get_profile_displayname(
-                UserID.from_string(user_id).localpart
+                UserID.from_string(user_id)
             )
             if user_display_name is None:
                 user_display_name = user_id