diff --git a/lib/less/tree/mixin.js b/lib/less/tree/mixin.js
index ac74a374..2d2578a6 100644
--- a/lib/less/tree/mixin.js
+++ b/lib/less/tree/mixin.js
@@ -74,6 +74,8 @@ tree.mixin.Definition.prototype = {
                 }
             }
         }
+        frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(args)));
+
         return new(tree.Ruleset)(null, this.rules.slice(0)).eval({
             frames: [this, frame].concat(this.frames, env.frames)
         });