# Can not run DQL mutation in Dgraph Cloud DQL UI

**URL:** <https://discuss.dgraph.io/t/can-not-run-dql-mutation-in-dgraph-cloud-dql-ui/15763>\
**Category:** Dgraph Cloud\
**Tags:** kind:question\
**Created:** [October 8, 2021, 4:20pm UTC](https://discuss.dgraph.io/t/can-not-run-dql-mutation-in-dgraph-cloud-dql-ui/15763 "2021-10-08T16:20:57Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![littleone](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/littleone/32/6333_2.png) [@littleone](https://discuss.dgraph.io/u/littleone)\
**Post date:** [October 8, 2021, 4:20pm UTC](https://discuss.dgraph.io/t/can-not-run-dql-mutation-in-dgraph-cloud-dql-ui/15763/1 "2021-10-08T16:20:57Z")

</div>

the mutation is

```auto
{
   set {
      <0x3de2597b8> <valid> "true" .
   }
}

```

really simple, and it is works fine in Ratel.

the error is

```auto
{
  "errors": [
    {
      "message": "Error parsing JSON at line 2, character 6: invalid character 's' looking for beginning of object key string\n",
      "extensions": {
        "code": "ErrorInvalidRequest"
      }
    }
  ]
}

```