diff --git a/lodash.js b/lodash.js
index 138bf6869..cabe146a8 100644
--- a/lodash.js
+++ b/lodash.js
@@ -3710,23 +3710,14 @@
     function contains(collection, target, fromIndex) {
       var length = collection ? collection.length : 0;
       if (!(typeof length == 'number' && length > -1 && length <= maxSafeInteger)) {
-        var props = keys(collection);
-        length = props.length;
+        collection = values(collection);
+        length = collection.length;
       }
       if (typeof fromIndex == 'number') {
         fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : (fromIndex || 0);
       } else {
         fromIndex = 0;
       }
-      if (props) {
-        while (fromIndex < length) {
-          var value = collection[props[fromIndex++]];
-          if (value === target) {
-            return true;
-          }
-        }
-        return false;
-      }
       if (typeof collection == 'string' || !isArray(collection) && isString(collection)) {
         if (fromIndex >= length) {
           return false;