diff --git a/htdocs/core/tpl/extrafields_list_print_fields.tpl.php b/htdocs/core/tpl/extrafields_list_print_fields.tpl.php
index 2a12a07fd23..67d41199594 100644
--- a/htdocs/core/tpl/extrafields_list_print_fields.tpl.php
+++ b/htdocs/core/tpl/extrafields_list_print_fields.tpl.php
@@ -67,7 +67,7 @@ if (!empty($extrafieldsobjectkey) && !empty($extrafields->attributes[$extrafield
 						// we keep position for the first line
 						$totalarray['totalizable'][$key]['pos'] = $totalarray['nbfield'];
 					}
-					if (is_numeric($obj->$tmpkey)) {
+					if (isset($obj->$tmpkey) && is_numeric($obj->$tmpkey)) {
 						if (!isset($totalarray['totalizable'][$key]['total'])) {
 							$totalarray['totalizable'][$key]['total'] = 0;
 						}