diff --git a/source/Ox/js/Array.js b/source/Ox/js/Array.js
index d02e300c..6beae511 100644
--- a/source/Ox/js/Array.js
+++ b/source/Ox/js/Array.js
@@ -765,9 +765,10 @@ Ox.unique <f> Removes duplicate values from an array
     [1, 2, 3]
     > Ox.unique([NaN, NaN])
     []
+    > Ox.unique('foo')
+    'fo'
 @*/
 Ox.unique = function(array) {
-    array = Ox.slice(array);
     return Ox.filter(array, function(value, index) {
         return array.indexOf(value) == index;
     });