diff --git a/quic/tools/quic_spdy_client_base.cc b/quic/tools/quic_spdy_client_base.cc
index 770b6ab..3a3bafe 100644
--- a/quic/tools/quic_spdy_client_base.cc
+++ b/quic/tools/quic_spdy_client_base.cc
@@ -234,7 +234,7 @@
   }
 }
 
-size_t QuicSpdyClientBase::latest_response_code() const {
+int QuicSpdyClientBase::latest_response_code() const {
   QUIC_BUG_IF(!store_response_) << "Response not stored!";
   return latest_response_code_;
 }
diff --git a/quic/tools/quic_spdy_client_base.h b/quic/tools/quic_spdy_client_base.h
index dc1811d..b04ba66 100644
--- a/quic/tools/quic_spdy_client_base.h
+++ b/quic/tools/quic_spdy_client_base.h
@@ -120,7 +120,7 @@
 
   void set_store_response(bool val) { store_response_ = val; }
 
-  size_t latest_response_code() const;
+  int latest_response_code() const;
   const std::string& latest_response_headers() const;
   const std::string& preliminary_response_headers() const;
   const spdy::SpdyHeaderBlock& latest_response_header_block() const;
diff --git a/quic/tools/quic_toy_client.cc b/quic/tools/quic_toy_client.cc
index 06ae497..319d3a2 100644
--- a/quic/tools/quic_toy_client.cc
+++ b/quic/tools/quic_toy_client.cc
@@ -325,7 +325,7 @@
       return 1;
     }
 
-    size_t response_code = client->latest_response_code();
+    int response_code = client->latest_response_code();
     if (response_code >= 200 && response_code < 300) {
       std::cout << "Request succeeded (" << response_code << ")." << std::endl;
     } else if (response_code >= 300 && response_code < 400) {