diff --git a/lib/less/parser.js b/lib/less/parser.js
index 5b0339d6..0e303850 100644
--- a/lib/less/parser.js
+++ b/lib/less/parser.js
@@ -1048,7 +1048,7 @@ less.Parser = function Parser(env) {
             },
 
             mediaFeature: function () {
-                var nodes = [];
+                var e, nodes = [];
 
                 do {
                     if (e = $(this.entities.keyword)) {
@@ -1074,7 +1074,7 @@ less.Parser = function Parser(env) {
             },
 
             mediaFeatures: function () {
-                var features = [];
+                var e, features = [];
                 
                 do {
                   if (e = $(this.mediaFeature)) {