diff --git a/app/code/Magento/Backend/Model/Config/SessionLifetime/BackendModel.php b/app/code/Magento/Backend/Model/Config/SessionLifetime/BackendModel.php
index 09f33abd0d44d..d658ca235ca8d 100644
--- a/app/code/Magento/Backend/Model/Config/SessionLifetime/BackendModel.php
+++ b/app/code/Magento/Backend/Model/Config/SessionLifetime/BackendModel.php
@@ -15,14 +15,17 @@
  */
 class BackendModel extends Value
 {
-    /** Maximum dmin session lifetime; 1 year*/
+    /** Maximum admin session lifetime; 1 year*/
     const MAX_LIFETIME = 31536000;
 
     /** Minimum admin session lifetime */
     const MIN_LIFETIME = 60;
 
     /**
+     * Processing object before save data
+     *
      * @since 100.1.0
+     * @throws LocalizedException
      */
     public function beforeSave()
     {