1 files changed, 1 insertions, 1 deletions

diff --git a/synapse/storage/state.py b/synapse/storage/state.py

index 4994bacd6c..553ba9dd1f 100644
--- a/synapse/storage/state.py
+++ b/synapse/storage/state.py
@@ -93,7 +93,7 @@ class StateStore(SQLBaseStore):
 
         state_group = context.state_group
         if not state_group:
-            state_group = _make_group_id(self._clock)
+            state_group = self._state_groups_id_gen.get_next_txn(txn)
             self._simple_insert_txn(
                 txn,
                 table="state_groups",