1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/handlers/device.py b/synapse/handlers/device.py
index ca7137f315..419bfef562 100644
--- a/synapse/handlers/device.py
+++ b/synapse/handlers/device.py
@@ -327,7 +327,7 @@ class DeviceHandler(BaseHandler):
                     user_id
                 )
                 logger.info("Extrem: %r, prev_ids: %r", extremity, prev_ids)
-                if str(extremity) == str(prev_ids[0]):
+                if extremity and prev_ids[0] and int(extremity) >= int(prev_ids[0]):
                     resync = False
 
             if resync: