diff --git a/htdocs/core/tpl/extrafields_list_print_fields.tpl.php b/htdocs/core/tpl/extrafields_list_print_fields.tpl.php
index 5cf6c827b49..e77d0ee0eaf 100644
--- a/htdocs/core/tpl/extrafields_list_print_fields.tpl.php
+++ b/htdocs/core/tpl/extrafields_list_print_fields.tpl.php
@@ -58,14 +58,14 @@ else								// Old method
 				if (in_array($extrafields->attribute_type[$key], array('date', 'datetime', 'timestamp')))
 				{
 					$value = $db->jdate($obj->$tmpkey);
-                                        if(is_a($obj, "Dolresource")){
+                                        if (is_array($obj->array_options) && isset($obj->array_options[$tmpkey])){
                                             $value = $db->jdate($obj->array_options[$tmpkey]);
                                         }
 				}
 				else
 				{
 					$value = $obj->$tmpkey;
-                                        if(is_a($obj, "Dolresource")){
+                                        if (is_array($obj->array_options) && isset($obj->array_options[$tmpkey])){
                                             $value = $obj->array_options[$tmpkey];
                                         }
 				}
@@ -80,4 +80,4 @@ else								// Old method
 			}
 		}
 	}
-}
\ No newline at end of file
+}