diff --git a/src/matrix/storage/idb/Transaction.js b/src/matrix/storage/idb/Transaction.js
index a8f90114..239293c6 100644
--- a/src/matrix/storage/idb/Transaction.js
+++ b/src/matrix/storage/idb/Transaction.js
@@ -31,7 +31,7 @@ import {DeviceIdentityStore} from "./stores/DeviceIdentityStore";
 import {OlmSessionStore} from "./stores/OlmSessionStore";
 import {InboundGroupSessionStore} from "./stores/InboundGroupSessionStore";
 import {OutboundGroupSessionStore} from "./stores/OutboundGroupSessionStore";
-import {GroupSessionDecryptionStore} from "./stores/GroupSessionDecryptionStore.js";
+import {GroupSessionDecryptionStore} from "./stores/GroupSessionDecryptionStore";
 import {OperationStore} from "./stores/OperationStore.js";
 import {AccountDataStore} from "./stores/AccountDataStore.js";
 
diff --git a/src/matrix/storage/idb/stores/GroupSessionDecryptionStore.js b/src/matrix/storage/idb/stores/GroupSessionDecryptionStore.ts
similarity index 100%
rename from src/matrix/storage/idb/stores/GroupSessionDecryptionStore.js
rename to src/matrix/storage/idb/stores/GroupSessionDecryptionStore.ts