1 files changed, 1 insertions, 1 deletions
diff --git a/libraries/server_variables.lib.php b/libraries/server_variables.lib.php
index 9206baa6e7..4b30281bcb 100644
--- a/libraries/server_variables.lib.php
+++ b/libraries/server_variables.lib.php
@@ -78,7 +78,7 @@ function PMA_getAjaxReturnForSetVal($variable_doc_links)
         );
         $value = floatval($matches[1]) * PMA_Util::pow(
             1024,
-            $exp[$GLOBALS['PMA_String']->strtolower($matches[3])]
+            $exp[/*overload*/mb_strtolower($matches[3])]
         );
     } else {
         $value = PMA_Util::sqlAddSlashes($value);