diff --git a/htdocs/projet/tasks/task.php b/htdocs/projet/tasks/task.php
index 230dd126de8..cd10b43f0c0 100644
--- a/htdocs/projet/tasks/task.php
+++ b/htdocs/projet/tasks/task.php
@@ -634,7 +634,8 @@ if ($id > 0 || !empty($ref))
 			// List of actions on element
 			include_once DOL_DOCUMENT_ROOT.'/core/class/html.formactions.class.php';
 			$formactions = new FormActions($db);
-			$somethingshown = $formactions->showactions($object, 'task', $socid, 1, '', 10, 'withproject='.$withproject);
+			$defaultthirdpartyid = $socid > 0 ? $socid : $object->project->socid;
+			$formactions->showactions($object, 'task', $defaultthirdpartyid, 1, '', 10, 'withproject='.$withproject);
 
 			print '</div></div></div>';
 		}