diff --git a/module/actor-sheet.js b/module/actor-sheet.js
index 925a256b..2c3e6eaf 100644
--- a/module/actor-sheet.js
+++ b/module/actor-sheet.js
@@ -347,10 +347,10 @@ export class RdDActorSheet extends ActorSheet {
     html.find('.arme-label a').click(async event => {
       let armeName = event.currentTarget.text;
       let compName = event.currentTarget.attributes['data-competence-name'].value;
-      let arme = this.actor.data.find(it =>
+      let arme = this.actor.data.items.find(it =>
         it.name == armeName &&
         RdDItemArme.isArme(it) &&
-        ((compName ?? it.data.competence) == it.data.competence)
+        ((compName || it.data.data.competence) == it.data.data.competence)
       );
       if (!arme) {
         arme = { name: armeName, data: { competence: compName } };