diff --git a/app/Http/Controllers/ActivityController.php b/app/Http/Controllers/ActivityController.php
index b23c12b..8635b25 100644
--- a/app/Http/Controllers/ActivityController.php
+++ b/app/Http/Controllers/ActivityController.php
@@ -502,7 +502,7 @@ class ActivityController extends Controller
 					'type_link' => 0,
 					'code_link' => 'FS',
 					'version_gantt_id' => $data['ganttId'],
-					'lag' => $diff > 1 ? $diff : null,
+					'lag' => null,
 				]);
 			}
 		}