diff --git a/src/main/java/org/cryptomator/ui/controls/NotificationBar.java b/src/main/java/org/cryptomator/ui/controls/NotificationBar.java
index 816014743..64a08f220 100644
--- a/src/main/java/org/cryptomator/ui/controls/NotificationBar.java
+++ b/src/main/java/org/cryptomator/ui/controls/NotificationBar.java
@@ -69,6 +69,7 @@ public class NotificationBar extends HBox {
 	}
 
 	public void setStyleClass(String styleClass) {
+		getStyleClass().clear();
 		getStyleClass().add(styleClass);
 	}