diff --git a/testdata/APs_1234_serialized.json b/testdata/APs_1234_serialized.json
index 7672c558..bca5a793 100644
--- a/testdata/APs_1234_serialized.json
+++ b/testdata/APs_1234_serialized.json
@@ -1,7 +1,7 @@
 {
   "Project 1234 has 2 APs": [
     {
-      "forGroup": "http://www.knora.org/ontology/knora-admin#ProjectAdmin",
+      "forGroup": {"val": "http://www.knora.org/ontology/knora-admin#ProjectAdmin"},
       "forProject": "http://rdfh.ch/projects/MsOaiQkcQ7-QPxsYBKckfQ",
       "hasPermissions": [
         "ProjectAdminRightsAllPermission",
@@ -10,7 +10,7 @@
       "iri": "http://rdfh.ch/ap-1"
     },
     {
-      "forGroup": "http://www.knora.org/ontology/knora-admin#KnownUser",
+      "forGroup": {"val": "http://www.knora.org/ontology/knora-admin#KnownUser"},
       "forProject": "http://rdfh.ch/projects/MsOaiQkcQ7-QPxsYBKckfQ",
       "hasPermissions": [
         "ProjectResourceCreateRestrictedPermission"
@@ -18,4 +18,4 @@
       "iri": "http://rdfh.ch/ap-2"
     }
   ]
-}
\ No newline at end of file
+}