diff --git a/module/actor-sheet.js b/module/actor-sheet.js
index f5e3303b..d7071f44 100644
--- a/module/actor-sheet.js
+++ b/module/actor-sheet.js
@@ -96,7 +96,7 @@ export class RdDActorSheet extends ActorSheet {
         if (melee.name == "Esquive")
           data.data.combat.push( { name: "Esquive", data: { niveau: melee.data.niveau, description: "", force: 6, initiative: "-", competence: "Esquive", dommages: 0} } );
         if (melee.name == "Corps à corps") {
-          let cc_init = "1d6" + melee.data.niveau + "+" + Math.ceil(data.data.carac['melee'].value / 2 );
+          let cc_init = RdDUtility.calculInitiative(melee.data.niveau, data.data.carac['melee'].value);
           data.data.combat.push( { name: "Corps à corps", data: { niveau: melee.data.niveau, description: "", force: 6, initiative: cc_init, competence: "Corps à corps", dommages: data.data.attributs.plusdom.value } } );
         }
       }
diff --git a/module/rdd-main.js b/module/rdd-main.js
index cd171d48..7fb9dec1 100644
--- a/module/rdd-main.js
+++ b/module/rdd-main.js
@@ -54,7 +54,7 @@ const _patch_initiative = () => {
               competence = duplicate(competenceItem);
             }
           }
-          rollFormula =  "1d6+" + competence.data.niveau + "+" + Math.ceil(competence.data.carac_value / 2);
+          rollFormula = RdDUtility.calculInitiative(competence.data.niveau, competence.data.carac_value);
         } else {
           for (const item of c.actor.data.items) {
             if (item.type == "arme" && item.data.equipe) {
@@ -63,7 +63,7 @@ const _patch_initiative = () => {
           }
           let compName = ( armeCombat == undefined ) ? "Corps à corps" : armeCombat.data.competence;
           competence = RdDUtility.findCompetence( c.actor.data.items, compName );   
-          rollFormula =  "1d6+" + competence.data.niveau + "+" + Math.ceil(c.actor.data.data.carac[competence.data.defaut_carac].value/2);
+          rollFormula =  RdDUtility.calculInitiative(competence.data.niveau, c.actor.data.data.carac[competence.data.defaut_carac].value);
         }
       }
       //console.log("Combatat", c);
diff --git a/module/rdd-utility.js b/module/rdd-utility.js
index ace85b4a..360f5756 100644
--- a/module/rdd-utility.js
+++ b/module/rdd-utility.js
@@ -3,6 +3,7 @@
 import { TMRUtility } from "./tmr-utility.js";
 import { RdDRollTables } from "./rdd-rolltables.js";
 import { ChatUtility } from "./chat-utility.js";
+import { Misc } from "./misc.js";
 
 /* -------------------------------------------- */
 const level_category = { 
@@ -425,7 +426,7 @@ export class RdDUtility  {
     let arme2mains = []; // Tableau contenant la duplication des armes 1m/2m
     for (const arme of armeList) { 
       let comp = competenceList.find(c => c.name == arme.data.competence);
-      arme.data.initiative = "1d6+" + arme.data.niveau + "+" + Math.ceil(carac[comp.data.defaut_carac].value/2);
+      arme.data.initiative = RdDUtility.calculInitiative(arme.data.niveau, carac[comp.data.defaut_carac].value);
       // Dupliquer les armes pouvant être à 1 main et 2 mains en patchant la compétence
       if (arme.data.unemain && arme.data.deuxmains) {
         let arme2main = duplicate(arme);
@@ -433,7 +434,7 @@ export class RdDUtility  {
         arme2main.data.competence = arme2main.data.competence.replace(" 1 main", " 2 mains"); // Replace !
         let comp = competenceList.find(c => c.name == arme2main.data.competence);        
         arme2main.data.niveau = comp.data.niveau;
-        arme2main.data.initiative = "1d6+" + arme2main.data.niveau + "+" + Math.ceil(carac[comp.data.defaut_carac].value/2);
+        arme2main.data.initiative = RdDUtility.calculInitiative(arme2main.data.niveau, carac[comp.data.defaut_carac].value);
         arme2mains.push(arme2main);
       }
     }
@@ -442,6 +443,11 @@ export class RdDUtility  {
     return armeList
   }
 
+  static calculInitiative(niveau, caracValue) {
+    let base = niveau + Math.floor(caracValue/2);
+    return "1d6" + (base >= 0 ? "+" : "") + base;
+  }
+
   /* -------------------------------------------- */
   static computeCarac( data)
   {
@@ -786,7 +792,7 @@ export class RdDUtility  {
           }
       }
       // Cas des créatures et entités vs personnages
-      let rollFormula =  "1d6+" + competence.data.niveau + "+" + Math.ceil(caracForInit/2) + "+" + initOffset;
+      let rollFormula =  RdDUtility.calculInitiative(competence.data.niveau, caracForInit) + "+" + initOffset;
       game.combat.rollInitiative(combatantId, rollFormula );
     }
   }