diff --git a/gtk/gtkdialog.c b/gtk/gtkdialog.c
index 0fbb5c3be7..fe101744ea 100644
--- a/gtk/gtkdialog.c
+++ b/gtk/gtkdialog.c
@@ -308,11 +308,6 @@ action_widget_activated (GtkWidget *widget, GtkDialog *dialog)
   gtk_dialog_response (dialog, response_id);
 }
 
-typedef struct {
-  GtkWidget *child;
-  gint       response_id;
-} ActionWidgetData;
-
 static void
 add_response_data (GtkDialog *dialog,
                    GtkWidget *child,