diff --git a/module/actor/export-scriptarium/mapping.js b/module/actor/export-scriptarium/mapping.js
index ffb2b788..6aaee07e 100644
--- a/module/actor/export-scriptarium/mapping.js
+++ b/module/actor/export-scriptarium/mapping.js
@@ -327,7 +327,8 @@ export class Mapping {
     const txtByCategories = Object.values(byCategories)
       .map(it => it.competencesParNiveau)
       .map(byNiveau => {
-        const niveaux = Object.keys(byNiveau).map(it => Number(it)).sort(Misc.ascending())
+        const niveaux = Object.keys(byNiveau)
+          .map(it => Number(it)).sort(Misc.ascending())
         if (niveaux.length == 0) {
           return ''
         }
diff --git a/module/item-competence.js b/module/item-competence.js
index 25c6659d..f09ca6a8 100644
--- a/module/item-competence.js
+++ b/module/item-competence.js
@@ -190,7 +190,7 @@ export class RdDItemCompetence extends Item {
 
   /* -------------------------------------------- */
   static isNiveauBase(item) {
-    return Number(item.system.niveau) == RdDItemCompetence.getNiveauBase(item.system.categorie, item.type);
+    return item.system.niveau == undefined || Number(item.system.niveau) == RdDItemCompetence.getNiveauBase(item.system.categorie, item.type);
   }
 
   /* -------------------------------------------- */
diff --git a/module/item-sheet.js b/module/item-sheet.js
index 93e3a6c5..dd58ab6f 100644
--- a/module/item-sheet.js
+++ b/module/item-sheet.js
@@ -267,10 +267,17 @@ export class RdDItemSheet extends ItemSheet {
   /* -------------------------------------------- */
   /** @override */
   _updateObject(event, formData) {
-    if (this.item.type == 'sort') {
-      // Données de bonus de cases ?
-      formData['system.bonuscase'] = RdDItemSort.buildBonuscaseFromArrays(formData.bonusValue, formData.caseValue);
+    switch (this.item.type) {
+      case ITEM_TYPES.sort:
+        // Données de bonus de cases ?
+        formData['system.bonuscase'] = RdDItemSort.buildBonuscaseFromArrays(formData.bonusValue, formData.caseValue)
+        break
+      case ITEM_TYPES.competence:
+        if (formData['system.niveau'] == undefined) {
+          formData['system.niveau'] = formData['system.base']
+        }
     }
+
     return this.item.update(formData);
   }