diff --git a/lib/less/tree/paren.js b/lib/less/tree/paren.js
new file mode 100644
index 00000000..384a43c7
--- /dev/null
+++ b/lib/less/tree/paren.js
@@ -0,0 +1,16 @@
+
+(function (tree) {
+
+tree.Paren = function (node) {
+    this.value = node;
+};
+tree.Paren.prototype = {
+    toCSS: function (env) {
+        return '(' + this.value.toCSS(env) + ')';
+    },
+    eval: function (env) {
+        return new(tree.Paren)(this.value.eval(env));
+    }
+};
+
+})(require('../tree'));