1 files changed, 3 insertions, 2 deletions
diff --git a/synapse/replication/slave/storage/groups.py b/synapse/replication/slave/storage/groups.py
index 28a46edd28..69a4ae42f9 100644
--- a/synapse/replication/slave/storage/groups.py
+++ b/synapse/replication/slave/storage/groups.py
@@ -14,6 +14,7 @@
 # limitations under the License.
 
 from synapse.storage import DataStore
+from synapse.storage.database import Database
 from synapse.util.caches.stream_change_cache import StreamChangeCache
 
 from ._base import BaseSlavedStore, __func__
@@ -21,8 +22,8 @@ from ._slaved_id_tracker import SlavedIdTracker
 
 
 class SlavedGroupServerStore(BaseSlavedStore):
-    def __init__(self, db_conn, hs):
-        super(SlavedGroupServerStore, self).__init__(db_conn, hs)
+    def __init__(self, database: Database, db_conn, hs):
+        super(SlavedGroupServerStore, self).__init__(database, db_conn, hs)
 
         self.hs = hs