diff --git a/module/actor-sheet.js b/module/actor-sheet.js
index 2c3e6eaf..9080d850 100644
--- a/module/actor-sheet.js
+++ b/module/actor-sheet.js
@@ -355,7 +355,7 @@ export class RdDActorSheet extends ActorSheet {
       if (!arme) {
         arme = { name: armeName, data: { competence: compName } };
       }
-      this.actor.rollArme(arme);
+      this.actor.rollArme( duplicate(arme) );
     });
     // Initiative pour l'arme
     html.find('.arme-initiative a').click(async event => {