diff --git a/src/domain/AccountSetupViewModel.js b/src/domain/AccountSetupViewModel.js
index 7930b87d..b2ce808a 100644
--- a/src/domain/AccountSetupViewModel.js
+++ b/src/domain/AccountSetupViewModel.js
@@ -15,7 +15,7 @@ limitations under the License.
 */
 
 import {ViewModel} from "./ViewModel.js";
-import {KeyType} from "../matrix/ssss/index.js";
+import {KeyType} from "../matrix/ssss/index";
 import {Status} from "./session/settings/SessionBackupViewModel.js";
 
 export class AccountSetupViewModel extends ViewModel {
diff --git a/src/domain/session/settings/SessionBackupViewModel.js b/src/domain/session/settings/SessionBackupViewModel.js
index 52be43b4..5a127904 100644
--- a/src/domain/session/settings/SessionBackupViewModel.js
+++ b/src/domain/session/settings/SessionBackupViewModel.js
@@ -15,7 +15,7 @@ limitations under the License.
 */
 
 import {ViewModel} from "../../ViewModel.js";
-import {KeyType} from "../../../matrix/ssss/index.js";
+import {KeyType} from "../../../matrix/ssss/index";
 import {createEnum} from "../../../utils/enum";
 
 export const Status = createEnum("Enabled", "SetupKey", "SetupPhrase", "Pending"); 
diff --git a/src/matrix/Session.js b/src/matrix/Session.js
index 17c0cf94..e3f3cda3 100644
--- a/src/matrix/Session.js
+++ b/src/matrix/Session.js
@@ -42,7 +42,7 @@ import {
     writeKey as ssssWriteKey,
     removeKey as ssssRemoveKey,
     keyFromDehydratedDeviceKey as createSSSSKeyFromDehydratedDeviceKey
-} from "./ssss/index.js";
+} from "./ssss/index";
 import {SecretStorage} from "./ssss/SecretStorage.js";
 import {ObservableValue, RetainedObservableValue} from "../observable/ObservableValue";
 
diff --git a/src/matrix/e2ee/Dehydration.js b/src/matrix/e2ee/Dehydration.js
index 1f51c054..a14c40ce 100644
--- a/src/matrix/e2ee/Dehydration.js
+++ b/src/matrix/e2ee/Dehydration.js
@@ -16,7 +16,7 @@ limitations under the License.
 
 const DEHYDRATION_LIBOLM_PICKLE_ALGORITHM = "org.matrix.msc2697.v1.olm.libolm_pickle"; 
 import {KeyDescription} from "../ssss/common";
-import {keyFromCredentialAndDescription} from "../ssss/index.js";
+import {keyFromCredentialAndDescription} from "../ssss/index";
 
 export async function getDehydratedDevice(hsApi, olm, platform, log) {
     try {