diff --git a/www/application/classes/Controller/Articles/Modify.php b/www/application/classes/Controller/Articles/Modify.php
index 38129d646..a97aa8c6d 100644
--- a/www/application/classes/Controller/Articles/Modify.php
+++ b/www/application/classes/Controller/Articles/Modify.php
@@ -154,7 +154,7 @@ public function action_save()
             return;
         }
 
-        $uri = Arr::get($_POST, 'uri');
+        $uri = strtolower(Arr::get($_POST, 'uri'));
         $alias = Model_Aliases::generateUri($uri);
 
         if ($article_id) {
diff --git a/www/application/classes/Controller/Users/Index.php b/www/application/classes/Controller/Users/Index.php
index 7323dcdf2..258bba0a9 100644
--- a/www/application/classes/Controller/Users/Index.php
+++ b/www/application/classes/Controller/Users/Index.php
@@ -73,6 +73,7 @@ public function action_settings()
             $name          = Arr::get($_POST, 'name');
             $bio           = Arr::get($_POST, 'bio');
             $alias         = Arr::get($_POST, 'alias');
+            $alias = strtolower(Arr::get($_POST, 'alias'));
 
             $instagram_uri = $this->methods->parseUri(Arr::get($_POST, 'instagram_uri'));
             $vk_uri        = $this->methods->parseUri(Arr::get($_POST, 'vk_uri'));