diff --git a/src/client.ts b/src/client.ts
index e0f40a8a2ba..3cd18a0f0e6 100644
--- a/src/client.ts
+++ b/src/client.ts
@@ -3102,18 +3102,6 @@ export class MatrixClient extends TypedEventEmitter<EmittedEvents, ClientEventHa
         return this.restoreKeyBackup(privKey, targetRoomId, targetSessionId, backupInfo, opts);
     }
 
-    public async restoreKeyBackupWithBackupManager(
-        targetRoomId: string | undefined,
-        targetSessionId: string | undefined,
-        backupInfo: IKeyBackupInfo,
-        opts: IKeyBackupRestoreOpts,
-    ): Promise<IKeyBackupRestoreResult> {
-        const privKey = await this.crypto.backupManager.getKey();
-        return this.restoreKeyBackup(
-            privKey, targetRoomId, targetSessionId, backupInfo, opts,
-        );
-    }
-
     private async restoreKeyBackup(
         privKey: ArrayLike<number>,
         targetRoomId: undefined,
diff --git a/src/crypto/backup.ts b/src/crypto/backup.ts
index 94ec3c62445..2f03865824d 100644
--- a/src/crypto/backup.ts
+++ b/src/crypto/backup.ts
@@ -301,7 +301,7 @@ export class BackupManager {
                 || now - this.sessionLastCheckAttemptedTime[targetSessionId] > KEY_BACKUP_CHECK_RATE_LIMIT
         ) {
             this.sessionLastCheckAttemptedTime[targetSessionId] = now;
-            await this.baseApis.restoreKeyBackupWithBackupManager(targetRoomId, targetSessionId, this.backupInfo, {});
+            await this.baseApis.restoreKeyBackupWithCache(targetRoomId, targetSessionId, this.backupInfo, {});
         }
     }