diff --git a/lib/coffee_script/nodes.js b/lib/coffee_script/nodes.js
index b42cc18c..ba9fbc6e 100644
--- a/lib/coffee_script/nodes.js
+++ b/lib/coffee_script/nodes.js
@@ -526,11 +526,12 @@
     // part of a comprehension, slice, or splice.
     // TODO: This generates pretty ugly code ... shrink it.
     compile_array: function compile_array(o) {
-      var arr, body;
-      body = Expressions.wrap([new LiteralNode('i')]);
+      var arr, body, name;
+      name = o.scope.free_variable();
+      body = Expressions.wrap([new LiteralNode(name)]);
       arr = Expressions.wrap([new ForNode(body, {
           source: (new ValueNode(this))
-        }, new LiteralNode('i'))
+        }, new LiteralNode(name))
       ]);
       return (new ParentheticalNode(new CallNode(new CodeNode([], arr)))).compile(o);
     }
diff --git a/src/nodes.coffee b/src/nodes.coffee
index b3446df2..95a7a5eb 100644
--- a/src/nodes.coffee
+++ b/src/nodes.coffee
@@ -450,8 +450,9 @@ RangeNode: exports.RangeNode: inherit Node, {
   # part of a comprehension, slice, or splice.
   # TODO: This generates pretty ugly code ... shrink it.
   compile_array: (o) ->
-    body: Expressions.wrap([new LiteralNode('i')])
-    arr:  Expressions.wrap([new ForNode(body, {source: (new ValueNode(this))}, new LiteralNode('i'))])
+    name: o.scope.free_variable()
+    body: Expressions.wrap([new LiteralNode(name)])
+    arr:  Expressions.wrap([new ForNode(body, {source: (new ValueNode(this))}, new LiteralNode(name))])
     (new ParentheticalNode(new CallNode(new CodeNode([], arr)))).compile(o)
 
 }