diff --git a/telebot.go b/telebot.go
index 0e35062..4705587 100644
--- a/telebot.go
+++ b/telebot.go
@@ -111,7 +111,7 @@ const (
 	OnVideoChatScheduled    = "\avideo_chat_scheduled"
 
 	OnBoost        = "\aboost_updated"
-	onBoostRemoved = "\aboost_removed"
+	OnBoostRemoved = "\aboost_removed"
 )
 
 // ChatAction is a client-side status indicating bot activity.
diff --git a/update.go b/update.go
index edd49b6..63396dd 100644
--- a/update.go
+++ b/update.go
@@ -319,7 +319,7 @@ func (b *Bot) ProcessUpdate(u Update) {
 	}
 
 	if u.BoostRemoved != nil {
-		b.handle(onBoostRemoved, c)
+		b.handle(OnBoostRemoved, c)
 		return
 	}
 }