diff --git a/static/add.html b/static/add.html
index 01cc760..d722b49 100644
--- a/static/add.html
+++ b/static/add.html
@@ -40,9 +40,9 @@
 		 </select>
             <div class="form-group">
                 <label for="newUid">Username</label>
-                <input class="form-control" type="username" id="newUid" ng-model="newUid" placeholder="nome-utente" aria-describedby="newUidHelp" required ng-readonly="startConfirm" ng-keyup="typingUser()" />
+                <input class="form-control" type="username" id="newUid" ng-model="newUid" placeholder="nome.utente" aria-describedby="newUidHelp" required ng-readonly="startConfirm" ng-keyup="typingUser()" />
                 <small id="newUidHelp" class="form-text text-muted">
-                    Nome utente utilizzato per il login e per gli indirizzi <i>nome-utente</i><b>@lilik.it</b>.
+                    Nome utente utilizzato per il login e per gli indirizzi <i>nome.utente</i><b>@lilik.it</b>.
                 </small>
             </div>
             <div class="form-group">
diff --git a/static/add.js b/static/add.js
index c3156b0..ac404b9 100644
--- a/static/add.js
+++ b/static/add.js
@@ -38,8 +38,8 @@
 	    $scope.newExtraGroups = [];
 
             $scope.typingUser = function () {
-                $scope.newUid = $scope.newUid.toLowerCase().replace(' ', '-');
-                $scope.newCn = $scope.newUid.replace('-',' ').replace(/(^\w|\s\w)/g, m => m.toUpperCase());
+                $scope.newUid = $scope.newUid.toLowerCase().replace(' ', '.');
+                $scope.newCn = $scope.newUid.replace('.',' ').replace(/(^\w|\s\w)/g, m => m.toUpperCase());
             };
 
 	    $scope.notPrincipal = function (group) {