--- a/ui/gtk/toolkit.c	Thu Apr 16 17:41:35 2026 +0200
+++ b/ui/gtk/toolkit.c	Fri Apr 17 13:21:11 2026 +0200
@@ -313,6 +313,11 @@
     free(userdata);
 }
 
+void ui_destroy_eventdata(GtkWidget *object, UiEventData *data) {
+    free(data->action);
+    free(data);
+}
+
 void ui_destroy_vardata(GtkWidget *unused, UiVarEventData *data) {
     if(data->var) {
         ui_destroy_boundvar(data->obj->ctx, data->var);