--- a/ui/win32/button.c	Mon Dec 29 17:46:10 2025 +0100
+++ b/ui/win32/button.c	Wed Dec 31 09:16:02 2025 +0100
@@ -242,7 +242,7 @@
         if (i->obj) {
             group = i->obj;
         } else {
-            group = cxArrayListCreate(obj->ctx->allocator, NULL, CX_STORE_POINTERS, 8);
+            group = cxArrayListCreate(obj->ctx->allocator, CX_STORE_POINTERS, 8);
             i->obj = group;
         }