diff --git a/htdocs/core/class/commondocgenerator.class.php b/htdocs/core/class/commondocgenerator.class.php
index d0b64fdca77..82012400f68 100644
--- a/htdocs/core/class/commondocgenerator.class.php
+++ b/htdocs/core/class/commondocgenerator.class.php
@@ -950,7 +950,7 @@ abstract class CommonDocGenerator
 					}
 				}
 
-				if (array_key_exists('option_'.$key, $object->array_options)) {
+				if (array_key_exists('options_'.$key, $object->array_options)) {
 					$array_to_fill = array_merge($array_to_fill, array($array_key.'_options_'.$key => $object->array_options['options_'.$key]));
 				} else {
 					$array_to_fill = array_merge($array_to_fill, array($array_key.'_options_'.$key => ''));