diff --git a/htdocs/core/triggers/interface_50_modAgenda_ActionsAuto.class.php b/htdocs/core/triggers/interface_50_modAgenda_ActionsAuto.class.php
index 19facf72876..7b3cbe15f9a 100644
--- a/htdocs/core/triggers/interface_50_modAgenda_ActionsAuto.class.php
+++ b/htdocs/core/triggers/interface_50_modAgenda_ActionsAuto.class.php
@@ -723,8 +723,8 @@ class InterfaceActionsAuto
 			$actioncomm->contact     = $contactforaction;
 			$actioncomm->societe     = $societeforaction;
 			$actioncomm->author      = $user;   // User saving action
-			//$actioncomm->usertodo  = $user;	// User affected to action
-			$actioncomm->userdone    = $user;	// User doing action
+			$actioncomm->usertodo    = $user;	// User action is assigned to (owner of action)
+			$actioncomm->userdone    = $user;	// User doing action (deprecated, not used anymore)
 
 			$actioncomm->fk_element  = $object->id;
 			$actioncomm->elementtype = $object->element;