diff --git a/gtk/gtkdialog.c b/gtk/gtkdialog.c
index 81042a3098..94a6a54f75 100644
--- a/gtk/gtkdialog.c
+++ b/gtk/gtkdialog.c
@@ -24,6 +24,8 @@
  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  */
 
+#undef GTK_DISABLE_DEPRECATED
+
 #include <stdlib.h>
 #include <string.h>
 #include "config.h"