diff --git a/vlib/v/parser/fn.v b/vlib/v/parser/fn.v
index 468251ae59..6843968c19 100644
--- a/vlib/v/parser/fn.v
+++ b/vlib/v/parser/fn.v
@@ -590,7 +590,9 @@ fn (mut p Parser) anon_fn() ast.AnonFn {
 		return ast.AnonFn{}
 	}
 	p.open_scope()
-	p.scope.detached_from_parent = true
+	if p.pref.backend != .js {
+		p.scope.detached_from_parent = true
+	}
 	// TODO generics
 	args, _, is_variadic := p.fn_args()
 	for arg in args {