diff --git a/htdocs/projet/class/project.class.php b/htdocs/projet/class/project.class.php
index d4ecaff58a0..cf7cc5558a4 100644
--- a/htdocs/projet/class/project.class.php
+++ b/htdocs/projet/class/project.class.php
@@ -1729,9 +1729,7 @@ class Project extends CommonObject
 		// Load source object
 		$clone_project->fetch($fromid);
 		$clone_project->fetch_optionals();
-		if ($newthirdpartyid > 0) {
-			$clone_project->socid = $newthirdpartyid;
-		}
+		$clone_project->socid = ($newthirdpartyid > 0 ? $newthirdpartyid : 0);
 		$clone_project->fetch_thirdparty();
 
 		$orign_dt_start = $clone_project->date_start;