diff --git a/client/CMT.cpp b/client/CMT.cpp
index a78dc1811..15c9a0fdb 100644
--- a/client/CMT.cpp
+++ b/client/CMT.cpp
@@ -43,7 +43,10 @@
 #include "../lib/VCMIDirs.h"
 #include <cstdlib>
 #include "../lib/NetPacks.h"
+
+#ifdef _WIN32
 #include "SDL_syswm.h"
+#endif
 
 #if __MINGW32__
 #undef main