diff --git a/src/client/sdl/scrap.c b/src/client/sdl/scrap.c

index e86beaff931d66e9..557e33f206f84d12 100644

--- a/src/client/sdl/scrap.c

+++ b/src/client/sdl/scrap.c

@@ -57,6 +57,8 @@ typedef uint32_t scrap_type;

 #if defined(X11_SCRAP)

 /* * */

 static Display *SDL_Display;

+/* Avoid conflict with SDL_Window defined in <SDL/SDL_syswm.h>. */

+#define SDL_Window SDL_Window_variable

 static Window SDL_Window;

 static void (*Lock_Display)(void);

 static void (*Unlock_Display)(void);