diff --git a/vaadinfrontend/src/main/java/life/qbic/datamanager/views/general/DisclaimerCard.java b/vaadinfrontend/src/main/java/life/qbic/datamanager/views/general/DisclaimerCard.java
index b9ca7f3f4..71343b6d8 100644
--- a/vaadinfrontend/src/main/java/life/qbic/datamanager/views/general/DisclaimerCard.java
+++ b/vaadinfrontend/src/main/java/life/qbic/datamanager/views/general/DisclaimerCard.java
@@ -28,7 +28,7 @@
  */
 public class DisclaimerCard extends Card {
 
-  private List<ComponentEventListener<DisclaimerConfirmedEvent>> listeners;
+  private final List<ComponentEventListener<DisclaimerConfirmedEvent>> listeners;
   @Serial
   private static final long serialVersionUID = -6441310468106881703L;
   private final String disclaimerLabel;