diff --git a/src/matrix/storage/idb/Transaction.js b/src/matrix/storage/idb/Transaction.js
index 4a7b66fe..5732b321 100644
--- a/src/matrix/storage/idb/Transaction.js
+++ b/src/matrix/storage/idb/Transaction.js
@@ -24,7 +24,7 @@ import {TimelineEventStore} from "./stores/TimelineEventStore";
 import {TimelineRelationStore} from "./stores/TimelineRelationStore";
 import {RoomStateStore} from "./stores/RoomStateStore";
 import {RoomMemberStore} from "./stores/RoomMemberStore";
-import {TimelineFragmentStore} from "./stores/TimelineFragmentStore.js";
+import {TimelineFragmentStore} from "./stores/TimelineFragmentStore";
 import {PendingEventStore} from "./stores/PendingEventStore.js";
 import {UserIdentityStore} from "./stores/UserIdentityStore.js";
 import {DeviceIdentityStore} from "./stores/DeviceIdentityStore.js";
diff --git a/src/matrix/storage/idb/stores/TimelineFragmentStore.js b/src/matrix/storage/idb/stores/TimelineFragmentStore.ts
similarity index 100%
rename from src/matrix/storage/idb/stores/TimelineFragmentStore.js
rename to src/matrix/storage/idb/stores/TimelineFragmentStore.ts