diff --git a/libraries/session.lib.php b/libraries/session.lib.php
index 5c2721fe95..5b0404b99a 100644
--- a/libraries/session.lib.php
+++ b/libraries/session.lib.php
@@ -16,7 +16,7 @@
 function PMA_secureSession()
 {
     // prevent session fixation and XSS
-    if (session_status() === PHP_SESSION_ACTIVE) {
+    if (session_status() === PHP_SESSION_ACTIVE && ! defined('TESTSUITE')) {
         session_regenerate_id(true);
     }
     PMA_generateToken();