diff --git a/util/net/http_transport_win.cc b/util/net/http_transport_win.cc
index df444d86..13856dae 100644
--- a/util/net/http_transport_win.cc
+++ b/util/net/http_transport_win.cc
@@ -150,7 +150,7 @@ HTTPTransportWin::~HTTPTransportWin() {
 
 bool HTTPTransportWin::ExecuteSynchronously(std::string* response_body) {
   ScopedHINTERNET session(WinHttpOpen(base::UTF8ToWide(UserAgent()).c_str(),
-                                      WINHTTP_ACCESS_TYPE_DEFAULT_PROXY,
+                                      WINHTTP_ACCESS_TYPE_AUTOMATIC_PROXY,
                                       WINHTTP_NO_PROXY_NAME,
                                       WINHTTP_NO_PROXY_BYPASS,
                                       0));