diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py
index 6920a60759..7733124c04 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -2186,6 +2186,8 @@ class SyncHandler:
         Build a sync entry for profile updates and attach it to the given
         `sync_result_builder`.
 
+        Currently only local profiles updates will be included in the sync response.
+
         Args:
             sync_result_builder:
         """