diff --git a/htdocs/mrp/mo_list.php b/htdocs/mrp/mo_list.php
index bac3528e642..957d6ac75aa 100644
--- a/htdocs/mrp/mo_list.php
+++ b/htdocs/mrp/mo_list.php
@@ -235,7 +235,7 @@ foreach ($search as $key => $val) {
 		}
 		$mode_search = (($object->isInt($object->fields[$key]) || $object->isFloat($object->fields[$key])) ? 1 : 0);
 		if ((strpos($object->fields[$key]['type'], 'integer:') === 0) || (strpos($object->fields[$key]['type'], 'sellist:') === 0) || !empty($object->fields[$key]['arrayofkeyval'])) {
-			if ($search[$key] == '-1' || $search[$key] === '0') {
+			if ($search[$key] == '-1') {
 				$search[$key] = '';
 			}
 			$mode_search = 2;