# IReminderService.UnregisterReminder(IGrainReminder)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.reminders/orleans.ireminderservice/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.reminders/orleans.ireminderservice/methods/)

```csharp
public abstract Task UnregisterReminder(IGrainReminder reminder)
```

Unregisters the specified reminder.

### Parameters

- `reminder` (`IGrainReminder`): The reminder.

### Returns

A `System.Threading.Tasks.Task` representing the operation.