diff --git a/module/actor/actor.js b/module/actor/actor.js
index 1e5c549..429612d 100644
--- a/module/actor/actor.js
+++ b/module/actor/actor.js
@@ -589,7 +589,7 @@ export class BoLActor extends Actor {
           if (!protect.data.properties.soak.formula || protect.data.properties.soak.formula == "") {
             ui.notifications.warn(`L'armure ${protect.name} n'a pas de formule pour la protection !`)
           } else {
-            formula += "+" + protect.data.properties.soak.formula
+            formula += "+" + " max(" + protect.data.properties.soak.formula +",0)"
           }
         } else {
           if (protect.data.properties.soak.value == undefined) {
@@ -608,9 +608,9 @@ export class BoLActor extends Actor {
   rollProtection(itemId) {
     let armor = this.data.items.get(itemId)
     if (armor) {
-      let armorFormula = armor.data.data.properties.soak.formula;
+      let armorFormula = "max("+armor.data.data.properties.soak.formula + ", 0)"
       let rollArmor = new Roll(armorFormula)
-      rollArmor.roll({ async: false }).toMessage();
+      rollArmor.roll({ async: false }).toMessage()
     }
   }
 
@@ -618,7 +618,7 @@ export class BoLActor extends Actor {
   rollWeaponDamage(itemId) {
     let weapon = this.data.items.get(itemId)
     if (weapon) {
-      let r = new BoLDefaultRoll({ id: randomID(16), isSuccess: true, mode: "weapon", weapon: weapon, actor: this })
+      let r = new BoLDefaultRoll({ id: randomID(16), isSuccess: true, mode: "weapon", weapon: weapon, actorId: this.id, actor: this })
       r.setSuccess(true)
       r.rollDamage()
     }
diff --git a/module/controllers/bol-rolls.js b/module/controllers/bol-rolls.js
index 15a41ed..0b456cd 100644
--- a/module/controllers/bol-rolls.js
+++ b/module/controllers/bol-rolls.js
@@ -555,9 +555,10 @@ export class BoLDefaultRoll {
   }
 
   /* -------------------------------------------- */
-  getDamageAttributeValue(attrDamage) {
+  getDamageAttributeValue(attrDamage, actorId = undefined) {
     let attrDamageValue = 0
-    let actor = game.actors.get( this.rollData.actorId)
+    
+    let actor = game.actors.get( (actorId) ? actorId: this.rollData.actorId)
     if (attrDamage.includes("vigor")) {
       attrDamageValue = actor.data.data.attributes.vigor.value
       if (attrDamage.includes("half")) {
diff --git a/module/system/bol-utility.js b/module/system/bol-utility.js
index ed18c47..9f92bcf 100644
--- a/module/system/bol-utility.js
+++ b/module/system/bol-utility.js
@@ -274,16 +274,16 @@ export class BoLUtility {
         defender.sufferDamage(attackDef.finalDamage);
       }
       if (defenseMode == 'hero-reduce-damage') {
-        let armorFormula = defender.getArmorFormula();
+        let armorFormula = defender.getArmorFormula()
         attackDef.rollArmor = new Roll(armorFormula)
-        attackDef.rollArmor.roll({ async: false });
-        attackDef.armorProtect = (attackDef.rollArmor.total < 0) ? 0 : attackDef.rollArmor.total;
-        attackDef.rollHero = new Roll("1d6");
-        attackDef.rollHero.roll({ async: false });
-        attackDef.finalDamage = attackDef.damageRoll.total - attackDef.rollHero.total - attackDef.armorProtect;
-        attackDef.finalDamage = (attackDef.finalDamage < 0) ? 0 : attackDef.finalDamage;
-        defender.sufferDamage(attackDef.finalDamage);
-        defender.subHeroPoints(1);
+        attackDef.rollArmor.roll({ async: false })
+        attackDef.armorProtect = (attackDef.rollArmor.total < 0) ? 0 : attackDef.rollArmor.total
+        attackDef.rollHero = new Roll("1d6")
+        attackDef.rollHero.roll({ async: false })
+        attackDef.finalDamage = attackDef.damageRoll.total - attackDef.rollHero.total - attackDef.armorProtect
+        attackDef.finalDamage = (attackDef.finalDamage < 0) ? 0 : attackDef.finalDamage
+        defender.sufferDamage(attackDef.finalDamage)
+        defender.subHeroPoints(1)
       }
       if (defenseMode == 'hero-in-extremis') {
         attackDef.finalDamage = 0;
diff --git a/system.json b/system.json
index 437bdf5..0707422 100644
--- a/system.json
+++ b/system.json
@@ -14,7 +14,7 @@
   "url": "https://github.com/ZigmundKreud/bol",
   "license": "LICENSE.txt",
   "flags": {},
-  "version": "1.3.6",
+  "version": "1.3.7",
   "templateVersion": 10,
   "minimumCoreVersion": "0.8.6",
   "compatibleCoreVersion": "9",