diff --git a/rpcs3/Gui/MainFrame.cpp b/rpcs3/Gui/MainFrame.cpp
index 12ce06a401..1c1bb00ad9 100644
--- a/rpcs3/Gui/MainFrame.cpp
+++ b/rpcs3/Gui/MainFrame.cpp
@@ -5,7 +5,7 @@
 #include "rpcs3.h"
 #include "MainFrame.h"
 
-#ifndef __WINDOWS__
+#ifndef _WIN32
 #include "frame_icon.xpm"
 #endif