diff --git a/Admin/Install/Navigation.php b/Admin/Install/Navigation.php
index 8e3269e..d321673 100644
--- a/Admin/Install/Navigation.php
+++ b/Admin/Install/Navigation.php
@@ -38,7 +38,7 @@ class Navigation
      */
     public static function install(string $path = null, DatabasePool $dbPool = null) : void
     {
-        $navData = json_decode(file_get_contents(__DIR__ . '/Navigation.install.json'), true);
+        $navData = \json_decode(file_get_contents(__DIR__ . '/Navigation.install.json'), true);
 
         $class = '\\Modules\\Navigation\\Admin\\Installer';
         /** @var $class \Modules\Navigation\Admin\Installer */
diff --git a/Models/EditorDoc.php b/Models/EditorDoc.php
index 499ba2b..5a032f1 100644
--- a/Models/EditorDoc.php
+++ b/Models/EditorDoc.php
@@ -235,7 +235,7 @@ class EditorDoc implements ArrayableInterface, \JsonSerializable
 
     public function __toString()
     {
-        return json_encode($this->toArray());
+        return \json_encode($this->toArray());
     }
 
     public function jsonSerialize()
diff --git a/Models/EditorDocMapper.php b/Models/EditorDocMapper.php
index bdf4da7..37636e4 100644
--- a/Models/EditorDocMapper.php
+++ b/Models/EditorDocMapper.php
@@ -26,7 +26,7 @@ class EditorDocMapper extends DataMapperAbstract
     /**
      * Columns.
      *
-     * @var array
+     * @var array<string, array<string, string>>
      * @since 1.0.0
      */
     static protected $columns = [