diff --git a/modules/admin/lib/Controller/Config.php b/modules/admin/lib/Controller/Config.php
index 4d582c19b0044f998b1a970e831b59c8cbdcd1ec..f29180ab7dc5cfb94cd693ba2c04fee5f4664343 100644
--- a/modules/admin/lib/Controller/Config.php
+++ b/modules/admin/lib/Controller/Config.php
@@ -32,10 +32,10 @@ class Config
     protected Configuration $config;
 
     /** @var \SimpleSAML\Utils\Auth */
-    protected $authUtils;
+    protected Utils\Auth $authUtils;
 
     /** @var \SimpleSAML\Utils\HTTP */
-    protected $httpUtils;
+    protected Utils\HTTP $httpUtils;
 
     /** @var \SimpleSAML\Module\admin\Controller\Menu */
     protected Menu $menu;
@@ -144,6 +144,10 @@ class Config
         return $this->menu->insert($t);
     }
 
+
+    /**
+     * @return array
+     */
     protected function getModuleList(): array
     {
         $modules = Module::getModules();
@@ -154,6 +158,7 @@ class Config
         return $modulestates;
     }
 
+
     /**
      * Display the output of phpinfo().
      *
diff --git a/modules/admin/lib/Controller/Federation.php b/modules/admin/lib/Controller/Federation.php
index 9d913d9bafdab45f56b2fe92ff4929f27e6e679f..cada26dd1d5bb51149d24547918235704450e78e 100644
--- a/modules/admin/lib/Controller/Federation.php
+++ b/modules/admin/lib/Controller/Federation.php
@@ -43,10 +43,10 @@ class Federation
     protected $authSource = Auth\Source::class;
 
     /** @var \SimpleSAML\Utils\Auth */
-    protected $authUtils;
+    protected Utils\Auth $authUtils;
 
     /** @var \SimpleSAML\Utils\Crypto */
-    protected $cryptoUtils;
+    protected Utils\Crypto $cryptoUtils;
 
     /** @var \SimpleSAML\Metadata\MetaDataStorageHandler */
     protected MetadataStorageHandler $mdHandler;
diff --git a/modules/admin/lib/Controller/Test.php b/modules/admin/lib/Controller/Test.php
index 44845142ce112d52414b2448a93807274c973416..334d027d9a426825fb201867fa9e09187e57aeab 100644
--- a/modules/admin/lib/Controller/Test.php
+++ b/modules/admin/lib/Controller/Test.php
@@ -33,7 +33,7 @@ class Test
     /**
      * @var \SimpleSAML\Utils\Auth
      */
-    protected $authUtils;
+    protected Utils\Auth $authUtils;
 
     /**
      * @var \SimpleSAML\Auth\Simple|string