diff --git a/pokerth_lib.pro b/pokerth_lib.pro
index 6ab18b9b..e9f1e3a2 100644
--- a/pokerth_lib.pro
+++ b/pokerth_lib.pro
@@ -256,6 +256,8 @@ win32{
 	##### My release static build options
 	#QMAKE_CXXFLAGS += -ffunction-sections -fdata-sections
 	INCLUDEPATH += $${PREFIX}/include /opt/gsasl/include
+        DEFINES += _WEBSOCKETPP_CPP11_STL_
+        QMAKE_CXXFLAGS += -std=gnu++11
 }
 
 mac{