diff --git a/htdocs/compta/prelevement/class/bonprelevement.class.php b/htdocs/compta/prelevement/class/bonprelevement.class.php
index a0beccfaff1..c177baeead9 100644
--- a/htdocs/compta/prelevement/class/bonprelevement.class.php
+++ b/htdocs/compta/prelevement/class/bonprelevement.class.php
@@ -766,8 +766,8 @@ class BonPrelevement extends CommonObject
 			$datetimeprev = $executiondate;
 		}
 
-		$month = dol_print_date("%m", $datetimeprev, 'gmt');
-		$year = dol_print_date("%Y", $datetimeprev, 'gmt');
+		$month = dol_print_date($datetimeprev, "%m", 'gmt');
+		$year = dol_print_date($datetimeprev, "%Y", 'gmt');
 
 		$this->invoice_in_error = array();
 		$this->thirdparty_in_error = array();