diff --git a/src/ag-app.h b/src/ag-app.h
index 89e393f..6b55258 100644
--- a/src/ag-app.h
+++ b/src/ag-app.h
@@ -47,6 +47,11 @@ void ag_app_run_action(AgApp                   *app,
                        gboolean                is_remote,
                        const AstrognomeOptions *options);
 
+gint ag_app_buttoned_dialog(GtkWidget      *window,
+                            GtkMessageType message_type,
+                            const gchar    *message,
+                            const gchar    *first_button_text, ...);
+
 void ag_app_message_dialog(GtkWidget      *window,
                            GtkMessageType message_type,
                            gchar          *fmt, ...);