diff --git a/src/matrix/storage/idb/Storage.js b/src/matrix/storage/idb/Storage.js
index cef636fb..ad155a17 100644
--- a/src/matrix/storage/idb/Storage.js
+++ b/src/matrix/storage/idb/Storage.js
@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import {Transaction} from "./Transaction.js";
+import {Transaction} from "./Transaction";
 import { STORE_NAMES, StorageError } from "../common";
 import { reqAsPromise } from "./utils";
 
diff --git a/src/matrix/storage/idb/Transaction.js b/src/matrix/storage/idb/Transaction.ts
similarity index 100%
rename from src/matrix/storage/idb/Transaction.js
rename to src/matrix/storage/idb/Transaction.ts