diff --git a/scm-core/src/main/java/sonia/scm/web/EdisonHalAppender.java b/scm-core/src/main/java/sonia/scm/web/EdisonHalAppender.java
index d7cc38018a..8df9b4a683 100644
--- a/scm-core/src/main/java/sonia/scm/web/EdisonHalAppender.java
+++ b/scm-core/src/main/java/sonia/scm/web/EdisonHalAppender.java
@@ -33,7 +33,7 @@ import sonia.scm.api.v2.resources.HalAppender;
 import java.util.ArrayList;
 import java.util.List;
 
-public class EdisonHalAppender implements HalAppender {
+public final class EdisonHalAppender implements HalAppender {
 
   private final Links.Builder linkBuilder;
   private final Embedded.Builder embeddedBuilder;