# Cancel Builds

https://api-docs.lumar.io/docs/protect/builds/cancel-builds

The following mutation cancels a build:

```graphql
mutation CancelBuild($buildId: ObjectID!) {
  cancelBuild(input: {
    buildId: $buildId
  }) {
    build {
      id
      createdAt
      updatedAt
      status
    }
  }
}
```

:::caution

You can have only one running Build per test suite.

:::