diff --git a/inc/users.class.php b/inc/users.class.php
index b2142f31..e71a68dd 100644
--- a/inc/users.class.php
+++ b/inc/users.class.php
@@ -1235,7 +1235,7 @@ class SP_Users {
             if ($showPass == TRUE) {
                 return $clearMasterPass;
             } else {
-                $_SESSION['mPassPwd'] = uniqid();
+                $_SESSION['mPassPwd'] = SHA1(uniqid());
 
                 $sessionMasterPass = $crypt->mkCustomMPassEncrypt($_SESSION["mPassPwd"], $clearMasterPass);