1 files changed, 1 insertions, 6 deletions
diff --git a/synapse/rest/client/v2_alpha/sync.py b/synapse/rest/client/v2_alpha/sync.py
index 095f96e218..25e3d919a8 100644
--- a/synapse/rest/client/v2_alpha/sync.py
+++ b/synapse/rest/client/v2_alpha/sync.py
@@ -120,15 +120,10 @@ class SyncRestServlet(RestServlet):
             except:
                 filter = FilterCollection({})
 
-        if is_guest and filter.list_rooms() is None:
-            raise SynapseError(
-                400, "Guest users must provide a list of rooms in the filter"
-            )
-
         sync_config = SyncConfig(
             user=user,
-            is_guest=is_guest,
             filter=filter,
+            is_guest=is_guest,
         )
 
         if since is not None: