diff --git a/code/nel/include/nel/gui/libwww.h b/code/nel/include/nel/gui/libwww.h
index 6a744b8c0..bb6b2da86 100644
--- a/code/nel/include/nel/gui/libwww.h
+++ b/code/nel/include/nel/gui/libwww.h
@@ -25,6 +25,8 @@ extern "C"
 #include "WWWInit.h"
 }
 
+#include "nel/misc/rgba.h"
+
 namespace NLGUI
 {
 	class CCtrlBaseButton;