diff --git a/htdocs/compta/prelevement/class/bonprelevement.class.php b/htdocs/compta/prelevement/class/bonprelevement.class.php
index 17ecdbd865d..99222f8e1c6 100644
--- a/htdocs/compta/prelevement/class/bonprelevement.class.php
+++ b/htdocs/compta/prelevement/class/bonprelevement.class.php
@@ -1691,7 +1691,7 @@ class BonPrelevement extends CommonObject
 
 		fclose($this->file);
 		if (!empty($conf->global->MAIN_UMASK)) {
-			@chmod($this->file, octdec($conf->global->MAIN_UMASK));
+			@chmod($this->filename, octdec($conf->global->MAIN_UMASK));
 		}
 
 		return $result;