diff --git a/htdocs/compta/prelevement/class/bonprelevement.class.php b/htdocs/compta/prelevement/class/bonprelevement.class.php
index a1dcdba6f58..7d16bcd8136 100644
--- a/htdocs/compta/prelevement/class/bonprelevement.class.php
+++ b/htdocs/compta/prelevement/class/bonprelevement.class.php
@@ -1690,7 +1690,7 @@ 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;