diff --git a/code/nel/src/gui/stdpch.h b/code/nel/src/gui/stdpch.h
index 6dfad8297..8ab2a3595 100644
--- a/code/nel/src/gui/stdpch.h
+++ b/code/nel/src/gui/stdpch.h
@@ -29,8 +29,9 @@
 #include "nel/misc/uv.h"
 #include "nel/misc/hierarchical_timer.h"
 
-#if NL_OS_WINDOWS
+#ifdef NL_OS_WINDOWS
 	#define NOMINMAX
+	#include <WinSock2.h>
 	#include <windows.h>
 #endif