diff -r e519ecc27cfe -r 655349c3021e ui/gtk/headerbar.c
--- a/ui/gtk/headerbar.c	Sun Apr 19 14:52:59 2026 +0200
+++ b/ui/gtk/headerbar.c	Sun Apr 19 15:25:45 2026 +0200
@@ -163,7 +163,7 @@
         UiObject *obj,
         enum UiToolbarPos pos)
 {
-    GtkWidget *button = ui_create_button(obj, item->args.label, item->args.icon, item->args.tooltip, item->args.onclick, item->args.onclickdata, 0, FALSE);
+    GtkWidget *button = ui_create_button(obj, item->args.label, item->args.icon, item->args.tooltip, item->args.onclick, item->args.onclickdata, item->args.action, 0, FALSE);
     ui_set_widget_states(obj->ctx, button, item->args.states);
     ui_set_widget_visibility_states(obj->ctx, button, item->args.visibility_states);
     WIDGET_ADD_CSS_CLASS(button, "flat");