diff --git a/MD_STD_SEC.php b/MD_STD_SEC.php
index 3c2c916..0c3afee 100644
--- a/MD_STD_SEC.php
+++ b/MD_STD_SEC.php
@@ -38,7 +38,8 @@ final class MD_STD_SEC {
         ) {
             $validity = true;
         }
-        $_SESSION['csrf-token'] = null; unset($_SESSION['csrf-token']);
+        $_SESSION['csrf-token'] = null;
+        unset($_SESSION['csrf-token']);
 
         return $validity;