diff --git a/src/browser/Factory.zig b/src/browser/Factory.zig
index 8a0893e1..a915d74a 100644
--- a/src/browser/Factory.zig
+++ b/src/browser/Factory.zig
@@ -303,7 +303,7 @@ pub fn destroy(self: *Factory, value: anytype) void {
 
     if (comptime IS_DEBUG) {
         // We should always destroy from the leaf down.
-        if (@hasField(S, "_type") and @typeInfo(@TypeOf(value._type)) == .@"union") {
+        if (@hasDecl(S, "_prototype_root")) {
             // A Event{._type == .generic} (or any other similar types)
             // _should_ be destoyed directly. The _type = .generic is a pseudo
             // child