diff --git a/module/rdd-combat.js b/module/rdd-combat.js
index dafda8ed..0412decd 100644
--- a/module/rdd-combat.js
+++ b/module/rdd-combat.js
@@ -674,8 +674,10 @@ export class RdDCombat {
 
     let rollData = this._prepareAttaque(competence, arme);
     console.log("RdDCombat.attaque >>>", rollData);
-    this.attacker.incItemUse(arme._id); // Usage
-    this.attacker.verifierForceMin(arme);
+    if (arme) {
+      this.attacker.incItemUse(arme._id); // Usage
+      this.attacker.verifierForceMin(arme);
+    }
 
     const dialog = await RdDRoll.create(this.attacker, rollData,
       {
diff --git a/system.json b/system.json
index 4a1516fd..c74a5482 100644
--- a/system.json
+++ b/system.json
@@ -2,7 +2,7 @@
   "name": "foundryvtt-reve-de-dragon",
   "title": "Rêve de Dragon",
   "description": "Rêve de Dragon RPG for FoundryVTT",
-  "version": "1.3.30",
+  "version": "1.3.31",
   "manifestPlusVersion": "1.0.0",
   "minimumCoreVersion": "0.7.5",
   "compatibleCoreVersion": "0.7.9",