diff --git a/htdocs/core/class/utils.class.php b/htdocs/core/class/utils.class.php
index 07b5fc0ae96..4f852b47061 100644
--- a/htdocs/core/class/utils.class.php
+++ b/htdocs/core/class/utils.class.php
@@ -383,7 +383,7 @@ class Utils
 				if ($compression == 'none') fclose($handle);
 				if ($compression == 'gz')   gzclose($handle);
 				if ($compression == 'bz')   bzclose($handle);
-				if ($ok && preg_match('/^-- (MySql|MariaDB)/i', $errormsg)) {	// No error
+				if ($ok && preg_match('/^-- (MySql|MariaDB)/i', $errormsg) || preg_match('/^\/\*M?!999999/', $errormsg)) {	// Start of file is ok, NOT an error
 					$errormsg = '';
 				} else {
 					// Renommer fichier sortie en fichier erreur