diff --git a/module/misc.js b/module/misc.js
index ff06f533..2f4b106d 100644
--- a/module/misc.js
+++ b/module/misc.js
@@ -144,9 +144,13 @@ export class Misc {
 
   /* -------------------------------------------- */
   static findFirstLike(value, elements, mapper = it=>it.name, description = 'valeurs') {
+    if (!value) {
+      return undefined;
+    }
     value = Grammar.toLowerCaseNoAccent(value);
     const subset = elements.filter(it => Grammar.toLowerCaseNoAccent(mapper(it)).includes(value));
     if (subset.length == 0) {
+      ui.notifications.info(`Pas de ${description} correspondant à ${value}`);
       return undefined;
     }
     let single = subset.find(it => Grammar.toLowerCaseNoAccent(mapper(it)) == value);