1 files changed, 10 insertions, 0 deletions
diff --git a/src/data/things/additional-name.js b/src/data/things/additional-name.js
index 4c23f291..99f3ee46 100644
--- a/src/data/things/additional-name.js
+++ b/src/data/things/additional-name.js
@@ -1,5 +1,7 @@
+import {input} from '#composite';
 import Thing from '#thing';
 
+import {exposeConstant} from '#composite/control-flow';
 import {contentString, thing} from '#composite/wiki-properties';
 
 export class AdditionalName extends Thing {
@@ -10,6 +12,14 @@ export class AdditionalName extends Thing {
 
     name: contentString(),
     annotation: contentString(),
+
+    // Expose only
+
+    isAdditionalName: [
+      exposeConstant({
+        value: input.value(true),
+      }),
+    ],
   });
 
   static [Thing.yamlDocumentSpec] = {