diff --git a/modules/client/back/models/client.js b/modules/client/back/models/client.js
index 740066efa..2522e1413 100644
--- a/modules/client/back/models/client.js
+++ b/modules/client/back/models/client.js
@@ -168,7 +168,7 @@ module.exports = Self => {
     }
 
     function isAlpha(value) {
-        const regexp = new RegExp(/^[ñça-zA-Z\s]*$/);
+        const regexp = new RegExp(/^[ñça-zA-Z0-9\s]*$/);
 
         return regexp.test(value);
     }