diff --git a/dlls/winex11.drv/xrandr.c b/dlls/winex11.drv/xrandr.c
index f818a6170f3..53d16c95bbc 100644
--- a/dlls/winex11.drv/xrandr.c
+++ b/dlls/winex11.drv/xrandr.c
@@ -26,6 +26,7 @@ WINE_DEFAULT_DEBUG_CHANNEL(xrandr);
 
 #ifdef SONAME_LIBXRANDR
 
+#include <X11/Xlib.h>
 #include <X11/extensions/Xrandr.h>
 #include "x11drv.h"