diff --git a/module/rdd-sheet-utility.js b/module/rdd-sheet-utility.js
index 1289aef1..9f52b7b6 100644
--- a/module/rdd-sheet-utility.js
+++ b/module/rdd-sheet-utility.js
@@ -26,7 +26,7 @@ export class RdDSheetUtility {
       destId: destItemId,
       targetActorId: actorId,
       itemId: item.id,
-      sourceActorId: item.actor.id,
+      sourceActorId: item.actor?.id,
       srcId: objetVersConteneur[item.id],
       onEnleverConteneur: () => { delete objetVersConteneur[item.id]; },
       onAjouterDansConteneur: (itemId, conteneurId) => { objetVersConteneur[itemId] = conteneurId; }