diff --git a/test/mock/peerconnection_mock.dart b/test/mock/peerconnection_mock.dart
index f2df6b4..0c64eaa 100644
--- a/test/mock/peerconnection_mock.dart
+++ b/test/mock/peerconnection_mock.dart
@@ -224,4 +224,8 @@ class MockPeerConnection extends RTCPeerConnection {
   static Future<RTCPeerConnection> create(Map<String, dynamic> configuration,
           [Map<String, dynamic>? constraints]) async =>
       MockPeerConnection();
+
+  @override
+  // TODO: implement restartIce
+  Future<void> restartIce() => throw UnimplementedError();
 }