diff --git a/quic/core/quic_stream_test.cc b/quic/core/quic_stream_test.cc
index 87f1d6e..e154482 100644
--- a/quic/core/quic_stream_test.cc
+++ b/quic/core/quic_stream_test.cc
@@ -72,7 +72,7 @@
 class QuicStreamTestBase : public QuicTestWithParam<ParsedQuicVersion> {
  public:
   QuicStreamTestBase()
-      : initial_flow_control_window_bytes_(kMaxPacketSize),
+      : initial_flow_control_window_bytes_(kMaxOutgoingPacketSize),
         zero_(QuicTime::Delta::Zero()),
         supported_versions_(AllSupportedVersions()) {}