1 files changed, 13 insertions, 3 deletions

diff --git a/src/data/things/group.js b/src/data/things/group.js
index 8764a9d..75469bb 100644
--- a/src/data/things/group.js
+++ b/src/data/things/group.js
@@ -34,8 +34,13 @@ export class Group extends Thing {
 
     // Update only
 
-    albumData: wikiData(Album),
-    groupCategoryData: wikiData(GroupCategory),
+    albumData: wikiData({
+      class: input.value(Album),
+    }),
+
+    groupCategoryData: wikiData({
+      class: input.value(GroupCategory),
+    }),
 
     // Expose only
 
@@ -83,12 +88,15 @@ export class Group extends Thing {
 }
 
 export class GroupCategory extends Thing {
+  static [Thing.referenceType] = 'group-category';
   static [Thing.friendlyName] = `Group Category`;
 
   static [Thing.getPropertyDescriptors] = ({Group}) => ({
     // Update & expose
 
     name: name('Unnamed Group Category'),
+    directory: directory(),
+
     color: color(),
 
     groups: referenceList({
@@ -99,6 +107,8 @@ export class GroupCategory extends Thing {
 
     // Update only
 
-    groupData: wikiData(Group),
+    groupData: wikiData({
+      class: input.value(Group),
+    }),
   });
 }