diff --git a/README.md b/README.md
index 9b2694f..edf625a 100644
--- a/README.md
+++ b/README.md
@@ -148,6 +148,15 @@ manualDismissTrigger.trigger() // Dismiss
 UINotificationCenter.current.notificationViewType = MyCustomNotificationView.self
 ```
 
+### Use a custom UIButton
+By setting the `button` property on `UINotification`, you can simply add a button to the notification.
+
+```swift
+notification.button = UIButton(type: .system)
+```
+
+![Button](Assets/button_notification.png?)
+
 ### Create a custom presenter
 Create a custom presenter to manage presentation and dismiss animations.
 
diff --git a/Sources/UINotification.swift b/Sources/UINotification.swift
index fe55028..31c7088 100644
--- a/Sources/UINotification.swift
+++ b/Sources/UINotification.swift
@@ -72,6 +72,7 @@ public final class UINotification: Equatable {
     public let style: UINotificationStyle
     
     /// The button to display on the right side of the notification, if any.
+    /// Setting this property will add the button, even if the notification is already visible.
     public var button: UIButton? {
         didSet {
             delegate?.didUpdateButton(in: self)