diff --git a/scm-core/src/main/java/sonia/scm/repository/RepositoryHandler.java b/scm-core/src/main/java/sonia/scm/repository/RepositoryHandler.java
index 88cf8e730f..566490e6c8 100644
--- a/scm-core/src/main/java/sonia/scm/repository/RepositoryHandler.java
+++ b/scm-core/src/main/java/sonia/scm/repository/RepositoryHandler.java
@@ -50,7 +50,7 @@ public interface RepositoryHandler
         extends Handler<Repository, RepositoryException>,
                 ListenerSupport<ConfigChangedListener>,
                 RepositoryBrowserProvider, ChangesetViewerProvider,
-                DiffViewerProvider
+                DiffViewerProvider, BlameViewerProvider
 {
 
   /**