diff --git a/module/actor.js b/module/actor.js
index 26364e91..ea056810 100644
--- a/module/actor.js
+++ b/module/actor.js
@@ -3148,7 +3148,7 @@ export class RdDActor extends Actor {
         return carac.chance;
     }
     let entry = Misc.findFirstLike(name, Object.entries(carac), { mapper: it => it[1].label, description: 'caractéristique' });
-    return entry.length > 0 ? carac[entry[0]] : undefined;
+    return entry && entry.length > 0 ? carac[entry[0]] : undefined;
   }
 
   /* -------------------------------------------- */
diff --git a/module/item-competence.js b/module/item-competence.js
index 5c7f3156..0bfe17b1 100644
--- a/module/item-competence.js
+++ b/module/item-competence.js
@@ -212,8 +212,11 @@ export class RdDItemCompetence extends Item {
 
   /* -------------------------------------------- */
   static findCompetence(list, idOrName, options = {}) {
+    if (idOrName == undefined) {
+      return undefined;
+    }
     options = mergeObject(options, {
-      filter: it => RdDItemCompetence.isCompetence(it),
+      preFilter: it => RdDItemCompetence.isCompetence(it),
       description: 'compétence',
     });
     return list.find(it => it.id == idOrName && RdDItemCompetence.isCompetence(it))
diff --git a/module/misc.js b/module/misc.js
index 59fc080c..3b6dbb40 100644
--- a/module/misc.js
+++ b/module/misc.js
@@ -192,7 +192,7 @@ export class Misc {
     if (!single) {
       single = subset[0];
       const choices = Misc.join(subset.map(it => options.mapper(it)), '<br>');
-      options.info(`Plusieurs choix de ${options.description}s possibles:<br>${choices}<br>Le premier sera choisi: ${mapToValue(single)}`);
+      options.onMessage(`Plusieurs choix de ${options.description}s possibles:<br>${choices}<br>Le premier sera choisi: ${options.mapper(single)}`);
     }
     return single;
   }
@@ -211,7 +211,7 @@ export class Misc {
     }
     value = Grammar.toLowerCaseNoAccent(value);
     const subset = elements.filter(options.preFilter)
-      .filter(it => Grammar.toLowerCaseNoAccent(options.mapper(it)).includes(value));
+      .filter(it => Grammar.toLowerCaseNoAccent(options.mapper(it))?.includes(value));
     if (subset.length == 0) {
       options.onMessage(`Pas de ${options.description} correspondant à ${value}`);
     }
diff --git a/module/rdd-commands.js b/module/rdd-commands.js
index fdddcb05..4aecbcbf 100644
--- a/module/rdd-commands.js
+++ b/module/rdd-commands.js
@@ -276,9 +276,11 @@ export class RdDCommands {
           diff = 0;
         }
         const caracName = params[0];
-        const compName = length > 1 ? Misc.join(params.slice(1, length), ' ') : undefined;
-        for (let actor of actors) {
-          await actor.rollCaracCompetence(caracName, compName, diff);
+        let competence = length > 1 ? actors[0].getCompetence(Misc.join(params.slice(1, length), ' ')) : undefined;
+        if (competence) {
+          for (let actor of actors) {
+            await actor.rollCaracCompetence(caracName, competence.name, diff);
+          }
         }
         return;
       }