diff --git a/app/adminapi/logic/cost_project/CostProjectLogic.php b/app/adminapi/logic/cost_project/CostProjectLogic.php
index ae2875a37..0adcb15c1 100644
--- a/app/adminapi/logic/cost_project/CostProjectLogic.php
+++ b/app/adminapi/logic/cost_project/CostProjectLogic.php
@@ -151,7 +151,7 @@ class CostProjectLogic extends BaseLogic
      */
     public static function detail($params): array
     {
-        return CostProject::findOrEmpty($params['id'])->toArray();
+        return CostProject::with(['contract'])->findOrEmpty($params['id'])->toArray();
     }
 
     public static function datas($name)