diff --git a/modules/heritiers-actor.js b/modules/heritiers-actor.js
index 1679b0b..fb8b468 100644
--- a/modules/heritiers-actor.js
+++ b/modules/heritiers-actor.js
@@ -293,10 +293,12 @@ export class HeritiersActor extends Actor {
     let item = this.items.find(item => item.id == itemId)
     if (item) {
       console.log("Item ", item, itemField, dataType, value)
-      if (dataType.toLowerCase() == "number") {
-        value = Number(value)
-      } else {
-        value = String(value)
+      if  (dataType) {
+        if (dataType.toLowerCase() == "number") {
+          value = Number(value)
+        } else {
+          value = String(value)
+        }
       }
       let update = { _id: item.id, [`system.${itemField}`]: value };
       this.updateEmbeddedDocuments("Item", [update])
diff --git a/system.json b/system.json
index 1433e33..02a0b03 100644
--- a/system.json
+++ b/system.json
@@ -1,7 +1,7 @@
 {
   "id": "fvtt-les-heritiers",
   "description": "Les Héritiers pour FoundryVTT",
-  "version": "10.0.22",
+  "version": "10.0.23",
   "authors": [
     {
       "name": "Uberwald/LeRatierBretonnien",
@@ -19,7 +19,7 @@
   "gridUnits": "m",
   "license": "LICENSE.txt",
   "manifest": "https://www.uberwald.me/gitea/public/fvtt-les-heritiers/raw/branch/master/system.json",
-  "download": "https://www.uberwald.me/gitea/public/fvtt-les-heritiers/archive/fvtt-les-heritiers-10.0.22.zip",
+  "download": "https://www.uberwald.me/gitea/public/fvtt-les-heritiers/archive/fvtt-les-heritiers-10.0.23.zip",
   "languages": [
     {
       "lang": "fr",
diff --git a/templates/actor-sheet.html b/templates/actor-sheet.html
index 291ec3c..e1141bc 100644
--- a/templates/actor-sheet.html
+++ b/templates/actor-sheet.html
@@ -101,7 +101,7 @@
                 {{/select}}
               </select>
 
-              <input type="checkbox" class="item-field-label-short" name="skill.system.predilection" {{checked skill.system.predilection}}/>
+              <input type="checkbox" class="item-field-label-short edit-item-data" data-item-field="predilection" {{checked skill.system.predilection}}/>
 
               <span class="item-field-label-long2">{{skill.specList}}</span>