diff --git a/htdocs/install/upgrade2.php b/htdocs/install/upgrade2.php
index a0af8634baa..92e58782523 100644
--- a/htdocs/install/upgrade2.php
+++ b/htdocs/install/upgrade2.php
@@ -4135,7 +4135,7 @@ function migrate_delete_old_files($db, $langs, $conf)
 		//print '<b>'DOL_DOCUMENT_ROOT.$filetodelete."</b><br>\n";
 		if (preg_match('/\*/', $filetodelete) || file_exists(DOL_DOCUMENT_ROOT.$filetodelete)) {
 			//print "Process file ".$filetodelete."\n";
-			$result = dol_delete_file(DOL_DOCUMENT_ROOT.$filetodelete, 0, 1, 0, null, true, false); // nophperrors to avoid false positive with asterisk
+			$result = dol_delete_file(DOL_DOCUMENT_ROOT.$filetodelete, 0, (preg_match('/\*/', $filetodelete) ? 1 : 0), 0, null, true, false); // nophperrors to avoid false positive with asterisk
 			if (!$result) {
 				$langs->load("errors");
 				print '<div class="error">'.$langs->trans("Error").': '.$langs->trans("ErrorFailToDeleteFile", DOL_DOCUMENT_ROOT.$filetodelete);