diff --git a/source/Ox/js/Collection.js b/source/Ox/js/Collection.js
index 272c516d..2c49c26c 100644
--- a/source/Ox/js/Collection.js
+++ b/source/Ox/js/Collection.js
@@ -134,7 +134,7 @@ Ox.filter = function(collection, iterator, that) {
         ret = {};
         Ox.forEach(collection, function(value, key) {
             if (iterator.call(that, value, key, collection)) {
-                ret[value] = key;
+                ret[key] = value;
             }
         });
     } else {