diff --git a/l18n b/l18n
index 50fbfd4..1281aec 160000
--- a/l18n
+++ b/l18n
@@ -1 +1 @@
-Subproject commit 50fbfd4a68dc2a41bdf2c844337630a2ced6b6ce
+Subproject commit 1281aec3b152b85577ca709564736df3cc963cd3
diff --git a/src/MDObjectSyndicationSet.php b/src/MDObjectSyndicationSet.php
index 4a16a08..d10d5da 100644
--- a/src/MDObjectSyndicationSet.php
+++ b/src/MDObjectSyndicationSet.php
@@ -32,6 +32,12 @@ final class MDObjectSyndicationSet extends MDValueSet {
             'org_prefix'    => null,
             'id_is_int'     => true,
         ],
+        'kalliope-verbund' => [
+            'url'           => 'https://kalliope-verbund.info/',
+            'object_prefix' => 'https://kalliope-verbund.info/',
+            'org_prefix'    => 'https://kalliope-verbund.info/isil?isil.id=',
+            'id_is_int'     => false,
+        ],
 
     ];