diff --git a/src/components/radio/index.vue b/src/components/radio/index.vue
index cbdf1949b..b05eef723 100755
--- a/src/components/radio/index.vue
+++ b/src/components/radio/index.vue
@@ -80,7 +80,7 @@ export default {
 function contains (a, obj) {
   var i = a.length
   while (i--) {
-    if (a[i] === obj) {
+    if (getKey(a[i]) === obj) {
       return true
     }
   }