diff --git a/src/Model/AdminUser.php b/src/Model/AdminUser.php
index 7e0a126..c59c0c2 100644
--- a/src/Model/AdminUser.php
+++ b/src/Model/AdminUser.php
@@ -74,6 +74,8 @@ public function getGroups(): Collection
 
     /**
      * {@inheritdoc}
+     *
+     * @return array
      */
     public function getRoles()
     {
@@ -88,6 +90,8 @@ public function getRoles()
 
     /**
      * {@inheritdoc}
+     *
+     * @return ?string
      */
     public function getPassword()
     {
@@ -96,6 +100,8 @@ public function getPassword()
 
     /**
      * {@inheritdoc}
+     *
+     * @return ?string
      */
     public function getSalt()
     {