1 files changed, 11 insertions, 5 deletions
diff --git a/synapse/storage/databases/main/room.py b/synapse/storage/databases/main/room.py
index 315e3d4936..c1d8ef5286 100644
--- a/synapse/storage/databases/main/room.py
+++ b/synapse/storage/databases/main/room.py
@@ -27,7 +27,7 @@ from synapse.api.room_versions import RoomVersion, RoomVersions
 from synapse.storage._base import SQLBaseStore, db_to_json
 from synapse.storage.database import DatabasePool, LoggingTransaction
 from synapse.storage.databases.main.search import SearchStore
-from synapse.types import ThirdPartyInstanceID
+from synapse.types import JsonDict, ThirdPartyInstanceID
 from synapse.util import json_encoder
 from synapse.util.caches.descriptors import cached
 
@@ -1318,11 +1318,17 @@ class RoomStore(RoomBackgroundUpdateStore, RoomWorkerStore, SearchStore):
 
         return self.db_pool.runInteraction("get_rooms", f)
 
-    def add_event_report(
-        self, room_id, event_id, user_id, reason, content, received_ts
-    ):
+    async def add_event_report(
+        self,
+        room_id: str,
+        event_id: str,
+        user_id: str,
+        reason: str,
+        content: JsonDict,
+        received_ts: int,
+    ) -> None:
         next_id = self._event_reports_id_gen.get_next()
-        return self.db_pool.simple_insert(
+        await self.db_pool.simple_insert(
             table="event_reports",
             values={
                 "id": next_id,