diff --git a/ui/gtk.c b/ui/gtk.c
index 38ef3fd..f372a6d 100644
--- a/ui/gtk.c
+++ b/ui/gtk.c
@@ -36,6 +36,7 @@
 
 #include "qemu/osdep.h"
 #include "qemu-common.h"
+#include "qemu/cutils.h"
 
 #include "ui/console.h"
 #include "ui/gtk.h"