diff --git a/htdocs/product/stock/list.php b/htdocs/product/stock/list.php
index 7074a6d2ba8..e4ad265c793 100644
--- a/htdocs/product/stock/list.php
+++ b/htdocs/product/stock/list.php
@@ -235,9 +235,9 @@ if (! empty($extrafields->attributes[$object->table_element]['label'])) {
 }
 // Add where from hooks
 $parameters=array();
-$reshook=$hookmanager->executeHooks('printFieldListGroupBy',$parameters);    // Note that $action and $object may have been modified by hook
+$reshook=$hookmanager->executeHooks('printFieldListGroupBy', $parameters);    // Note that $action and $object may have been modified by hook
 $sql.=$hookmanager->resPrint;
-$sql=preg_replace('/,\s*$/','', $sql);
+$sql=preg_replace('/,\s*$/', '', $sql);
 $totalnboflines = 0;
 $result = $db->query($sql);
 if ($result)