diff --git a/module/actor.js b/module/actor.js
index 5be84288..78e19e36 100644
--- a/module/actor.js
+++ b/module/actor.js
@@ -2177,36 +2177,18 @@ export class RdDActor extends Actor {
 
   /* -------------------------------------------- */
   computeArmure(attackerRoll) {
-    let dmg = attackerRoll.dmg.dmgArme + attackerRoll.dmg.dmgActor;
+    let dmg = (attackerRoll.dmg.dmgArme ??0) + (attackerRoll.dmg.dmgActor ?? 0);
     let arme = attackerRoll.arme;
-    // TODO: arc ignore armure
     let protection = 0;
-    for (const item of this.data.items) {
-      if (item.type == "armure" && item.data.equipe) {
-        let update = duplicate(item);
-        protection += new Roll(update.data.protection.toString()).roll().total;
-        update.data.deterioration = Misc.toInt(update.data.deterioration) + dmg;
-        dmg = 0; // Reset it
-        if (update.data.deterioration >= 10) {
-          update.data.deterioration = 0;
-          let res = /\d+/.exec(update.data.protection);
-          if (res)
-            update.data.protection = "1d" + update.data.protection;
-          // if ( update.data.protection.toString().length == 1 ) 
-          // update.data.protection = "1d"+update.data.protection;
-          else if (res = /(\d+d\d+)(\-\d+)?/.exec(update.data.protection)) {
-            let malus = Misc.toInt(res[2]) - 1;
-            update.data.protection = res[1] + malus;
-          }
-          else {
-            ui.notifications.warn(`La valeur d'armure de votre ${item.name} est incorrecte`)
-          }
-          ChatMessage.create({ content: "Détérioration d'armure: " + update.data.protection });
-        }
-        this.updateEmbeddedEntity("OwnedItem", update);
+    const armures = this.data.items.filter(it => it.type == "armure" && it.data.equipe);
+    for (const item of armures) {
+      protection += new Roll(item.data.protection.toString()).roll().total;
+      if (dmg > 0) {
+        this._deteriorerArmure(item, dmg);
+        dmg = 0;
       }
     }
-    // TODO: max armure (chutes)
+    // TODO: max armure sur chutes...
     const penetration = arme ? Misc.toInt(arme.data.penetration) : 0;
     protection = Math.max(protection - penetration, 0);
     protection += this.getProtectionNaturelle();
@@ -2214,6 +2196,27 @@ export class RdDActor extends Actor {
     return protection;
   }
 
+  _deteriorerArmure(item, dmg) {
+    let update = duplicate(item);
+    update.data.deterioration = (update.data.deterioration ?? 0) + dmg;
+    if (update.data.deterioration >= 10) {
+      update.data.deterioration = 0;
+      let res = /\d+/.exec(update.data.protection);
+      if (!res) {
+        update.data.protection = "1d" + update.data.protection;
+      }
+      else if (res = /(\d+d\d+)(\-\d+)?/.exec(update.data.protection)) {
+        let malus = Misc.toInt(res[2]) - 1;
+        update.data.protection = res[1] + malus;
+      }
+      else {
+        ui.notifications.warn(`La valeur d'armure de votre ${item.name} est incorrecte`);
+      }
+      ChatMessage.create({ content: "Votre armure s'est détériorée, elle protège maintenant de " + update.data.protection });
+    }
+    this.updateEmbeddedEntity("OwnedItem", update);
+  }
+
   /* -------------------------------------------- */
   async encaisser() {
     let data = { ajustementsEncaissement: RdDUtility.getAjustementsEncaissement() };