diff --git a/src/matrix/storage/idb/Transaction.js b/src/matrix/storage/idb/Transaction.js
index 239293c6..93690017 100644
--- a/src/matrix/storage/idb/Transaction.js
+++ b/src/matrix/storage/idb/Transaction.js
@@ -32,7 +32,7 @@ import {OlmSessionStore} from "./stores/OlmSessionStore";
 import {InboundGroupSessionStore} from "./stores/InboundGroupSessionStore";
 import {OutboundGroupSessionStore} from "./stores/OutboundGroupSessionStore";
 import {GroupSessionDecryptionStore} from "./stores/GroupSessionDecryptionStore";
-import {OperationStore} from "./stores/OperationStore.js";
+import {OperationStore} from "./stores/OperationStore";
 import {AccountDataStore} from "./stores/AccountDataStore.js";
 
 export class Transaction {
diff --git a/src/matrix/storage/idb/schema.js b/src/matrix/storage/idb/schema.js
index d0d9cf16..7df2cb3e 100644
--- a/src/matrix/storage/idb/schema.js
+++ b/src/matrix/storage/idb/schema.js
@@ -2,7 +2,7 @@ import {iterateCursor, reqAsPromise} from "./utils";
 import {RoomMember, EVENT_TYPE as MEMBER_EVENT_TYPE} from "../../room/members/RoomMember.js";
 import {RoomMemberStore} from "./stores/RoomMemberStore";
 import {SessionStore} from "./stores/SessionStore";
-import {encodeScopeTypeKey} from "./stores/OperationStore.js";
+import {encodeScopeTypeKey} from "./stores/OperationStore";
 
 // FUNCTIONS SHOULD ONLY BE APPENDED!!
 // the index in the array is the database version
diff --git a/src/matrix/storage/idb/stores/OperationStore.js b/src/matrix/storage/idb/stores/OperationStore.ts
similarity index 100%
rename from src/matrix/storage/idb/stores/OperationStore.js
rename to src/matrix/storage/idb/stores/OperationStore.ts