diff --git a/tests/auto/network/socket/qtcpserver/crashingServer/main.cpp b/tests/auto/network/socket/qtcpserver/crashingServer/main.cpp
index b53842e6ca4..2b00af218af 100644
--- a/tests/auto/network/socket/qtcpserver/crashingServer/main.cpp
+++ b/tests/auto/network/socket/qtcpserver/crashingServer/main.cpp
@@ -34,9 +34,16 @@
 
 #include <QtCore>
 #include <QtNetwork>
+#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) && !defined(Q_OS_WINRT) && defined(Q_CC_MSVC)
+#  include <crtdbg.h>
+#endif
 
 int main(int argc, char *argv[])
 {
+     // Windows: Suppress crash notification dialog.
+#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) && !defined(Q_OS_WINRT) && defined(Q_CC_MSVC)
+    _CrtSetReportMode(_CRT_ERROR, _CRTDBG_MODE_DEBUG);
+#endif
     QCoreApplication app(argc, argv);
 
     QTcpServer server;