diff --git a/htdocs/core/modules/project/task/doc/doc_generic_task_odt.modules.php b/htdocs/core/modules/project/task/doc/doc_generic_task_odt.modules.php
index 31172a32f43..2b60695db51 100644
--- a/htdocs/core/modules/project/task/doc/doc_generic_task_odt.modules.php
+++ b/htdocs/core/modules/project/task/doc/doc_generic_task_odt.modules.php
@@ -585,9 +585,9 @@ class doc_generic_task_odt extends ModelePDFTask
 						$odfHandler->mergeSegment($listlinestaskres);
 					}
 
-					//Time ressources
+					// Time ressources
 					$sql = "SELECT t.rowid, t.task_date, t.task_duration, t.fk_user, t.note";
-					$sql.= ", u.name, u.firstname";
+					$sql.= ", u.lastname, u.firstname";
 					$sql .= " FROM ".MAIN_DB_PREFIX."projet_task_time as t";
 					$sql .= " , ".MAIN_DB_PREFIX."user as u";
 					$sql .= " WHERE t.fk_task =".$object->id;
@@ -607,6 +607,7 @@ class doc_generic_task_odt extends ModelePDFTask
 							if (!empty($row['fk_user'])) {
 								$objectdetail=new User($this->db);
 								$objectdetail->fetch($row['fk_user']);
+								// TODO Use a cache to aoid fetch for same user
 								$row['fullcivname']=$objectdetail->getFullName($outputlangs,1);
 							} else {
 								$row['fullcivname']='';