diff --git a/config/resources/domain.json b/config/resources/domain.json
index 321835d..3ab7c87 100644
--- a/config/resources/domain.json
+++ b/config/resources/domain.json
@@ -638,6 +638,14 @@
         "rechtsvorm": {
           "type": "string",
           "predicate": "ext:rechtsvorm"
+        },
+        "short-name": {
+          "type": "string",
+          "predicate": "ext:shortName"
+        },
+        "start-date": {
+          "type": "date",
+          "predicate": "ext:startDate"
         }
       },
       "relationships": {