diff --git a/module/models/character.mjs b/module/models/character.mjs
index 5e527af..090bb0f 100644
--- a/module/models/character.mjs
+++ b/module/models/character.mjs
@@ -153,8 +153,8 @@ export default class CelestopolCharacter extends foundry.abstract.TypeDataModel
 
   prepareDerivedData() {
     super.prepareDerivedData()
-    // L'initiative est basée sur la résistance Corps
-    this.initiative = this.stats.corps.res
+    // Initiative PJ : 4 + Mobilité (Corps) + Inspiration (Cœur)
+    this.initiative = 4 + (this.stats.corps.mobilite?.value ?? 0) + (this.stats.coeur.inspiration?.value ?? 0)
   }
 
   /**
diff --git a/module/models/npc.mjs b/module/models/npc.mjs
index fa9f0bc..8247490 100644
--- a/module/models/npc.mjs
+++ b/module/models/npc.mjs
@@ -67,6 +67,7 @@ export default class CelestopolNPC extends foundry.abstract.TypeDataModel {
   prepareDerivedData() {
     super.prepareDerivedData()
     const malus = this.getWoundMalus()
+    // Initiative PNJ : valeur du Domaine Corps
     this.initiative = Math.max(0, this.stats.corps.res + malus)
     for (const stat of Object.values(this.stats)) {
       stat.actuel = Math.max(0, stat.res + malus)