diff --git a/quic/test_tools/quic_test_utils.cc b/quic/test_tools/quic_test_utils.cc
index 9274567..5ff5e05 100644
--- a/quic/test_tools/quic_test_utils.cc
+++ b/quic/test_tools/quic_test_utils.cc
@@ -529,7 +529,8 @@
     : QuicSession(connection,
                   nullptr,
                   DefaultQuicConfig(),
-                  connection->supported_versions()) {
+                  connection->supported_versions(),
+                  /*num_expected_unidirectional_static_streams = */ 0) {
   if (create_mock_crypto_stream) {
     crypto_stream_ = QuicMakeUnique<MockQuicCryptoStream>(this);
   }