diff --git a/operator-context.go b/operator-context.go
index 35cda31..64d7f93 100644
--- a/operator-context.go
+++ b/operator-context.go
@@ -60,9 +60,11 @@ func evalContextValue(ctx kern.ExprContext, opTerm *scan.Term) (v any, err error
 	} else if childValue != nil {
 		if it, ok := childValue.(kern.Iterator); ok {
 			var item any
-			values := kern.NewListA()
+			// values := kern.NewListA()
+			values := kern.NewLinkedListA()
 			for item, err = it.Next(); err == nil; item, err = it.Next() {
-				values.AppendItem(item)
+				// values.AppendItem(item)
+				values.PushBack(item)
 			}
 			if err == io.EOF {
 				err = nil