# Editor.EditorUtility.Prefabs.IsInstanceModified

```csharp
static bool IsInstanceModified(GameObject prefabInstance)
```

`M:PrefabInstanceData.IsModified`

### Parameters

- `prefabInstance` (`GameObject`)

### Returns

`bool`

Declared in [Editor.EditorUtility.Prefabs](/api/Editor.EditorUtility.Prefabs).
Assembly: `Sandbox.Tools`.