diff --git a/src/v2/api/index.md b/src/v2/api/index.md
index eaf6b9999a..e58b35b443 100644
--- a/src/v2/api/index.md
+++ b/src/v2/api/index.md
@@ -645,8 +645,12 @@ type: api
         immediate: true
       },
       e: [
-        function handle1 (val, oldVal) { /* ... */ },
-        function handle2 (val, oldVal) { /* ... */ }
+        'handle1',
+        function handle2 (val, oldVal) { /* ... */ },
+        {
+          handler: function handle3 (val, oldVal) { /* ... */ },
+          /* ... */
+        }
       ],
       // watch vm.e.f's value: {g: 5}
       'e.f': function (val, oldVal) { /* ... */ }