diff --git a/migrations/Version20250304115209.php b/migrations/Version20250304115209.php
new file mode 100644
index 0000000..32f12dc
--- /dev/null
+++ b/migrations/Version20250304115209.php
@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20250304115209 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE user CHANGE groups_view groups_view VARCHAR(255) DEFAULT NULL');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE user CHANGE groups_view groups_view VARCHAR(255) NOT NULL');
+    }
+}
diff --git a/src/Dto/Output/UserOutput.php b/src/Dto/Output/UserOutput.php
index cdab043..afa038f 100644
--- a/src/Dto/Output/UserOutput.php
+++ b/src/Dto/Output/UserOutput.php
@@ -24,7 +24,7 @@ final class UserOutput extends AbstractOutput
     #[Groups(['user:read'])]
     public array $userGroups;
     #[Groups(['user:read'])]
-    public string $groupsView;
+    public ?string $groupsView = 'card';
 
     #[Groups(['user:read'])]
     public \DateTime $createdAt;
diff --git a/src/Entity/User.php b/src/Entity/User.php
index 984b0e9..809ea75 100644
--- a/src/Entity/User.php
+++ b/src/Entity/User.php
@@ -51,7 +51,7 @@ class User extends AbstractEntity implements UserInterface, PasswordAuthenticate
     private ?string $newPassword = null;
     private ?string $repeatNewPassword = null;
 
-    #[ORM\Column(length: 255)]
+    #[ORM\Column(length: 255, nullable: true)]
     private ?string $groupsView = null;
 
 
@@ -254,7 +254,7 @@ class User extends AbstractEntity implements UserInterface, PasswordAuthenticate
         return $this->groupsView;
     }
 
-    public function setGroupsView(string $groupsView): static
+    public function setGroupsView(?string $groupsView): static
     {
         $this->groupsView = $groupsView;