diff --git a/quic/test_tools/mock_quic_dispatcher.cc b/quic/test_tools/mock_quic_dispatcher.cc
index 3b3ca46..40869e0 100644
--- a/quic/test_tools/mock_quic_dispatcher.cc
+++ b/quic/test_tools/mock_quic_dispatcher.cc
@@ -14,7 +14,7 @@
     const QuicCryptoServerConfig* crypto_config,
     QuicVersionManager* version_manager,
     std::unique_ptr<QuicConnectionHelperInterface> helper,
-    std::unique_ptr<QuicCryptoServerStream::Helper> session_helper,
+    std::unique_ptr<QuicCryptoServerStreamBase::Helper> session_helper,
     std::unique_ptr<QuicAlarmFactory> alarm_factory,
     QuicSimpleServerBackend* quic_simple_server_backend)
     : QuicSimpleDispatcher(config,