diff -r 46448d38885c -r d499b29d7cb6 ui/gtk/button.c
--- a/ui/gtk/button.c	Sat Nov 11 08:34:06 2017 +0100
+++ b/ui/gtk/button.c	Sat Nov 11 11:59:06 2017 +0100
@@ -39,9 +39,6 @@
     GtkWidget *button = gtk_button_new_with_label(label);
     
     if(f) {
-        //UiEventData *event = ucx_mempool_malloc(
-        //        obj->ctx->mempool,
-        //        sizeof(UiEventData));
         UiEventData *event = malloc(sizeof(UiEventData));
         event->obj = obj;
         event->userdata = data;
@@ -104,7 +101,7 @@
     e.obj = event->obj;
     e.window = event->obj->window;
     e.document = event->obj->ctx->document;
-    e.eventdata = NULL;
+    e.eventdata = event->var->value;
     e.intval = gtk_toggle_tool_button_get_active(widget);
     
     UiInteger *i = event->var->value;