diff --git a/dix/window.c b/dix/window.c
index 49ef4a0..5b87238 100644
--- a/dix/window.c
+++ b/dix/window.c
@@ -110,6 +110,7 @@ Equipment Corporation.
 #include "input.h"
 #include "inputstr.h"
 #include "resource.h"
+#include "selection.h"
 #include "colormapst.h"
 #include "cursorstr.h"
 #include "dixstruct.h"