lib/less/js/lib/less/tree/keyword.js in less-2.3.3 vs lib/less/js/lib/less/tree/keyword.js in less-2.4.0

@@ -1,10 +1,11 @@
 (function (tree) {
 
 tree.Keyword = function (value) { this.value = value };
 tree.Keyword.prototype = {
-    eval: function () { return this },
-    toCSS: function () { return this.value },
+    type: "Keyword",
+    eval: function () { return this; },
+    toCSS: function () { return this.value; },
     compare: function (other) {
         if (other instanceof tree.Keyword) {
             return other.value === this.value ? 0 : 1;
         } else {
             return -1;