diff --git a/webapp/services/MissionService.php b/webapp/services/MissionService.php
index 8377a385..94754503 100644
--- a/webapp/services/MissionService.php
+++ b/webapp/services/MissionService.php
@@ -805,8 +805,8 @@ class MissionService extends BaseService {
             myself()->_rspErr(1, 'mission_id parameter error3');
             return;
         }
-        if (myself()->_getItemCount(V_ITEM_DIAMOND, $this->userInfo) < $missionMeta['boost']){
-            myself()->_rspErr(2, 'diamond not enough');
+        if (myself()->_getItemCount(V_ITEM_GOLD, $this->userInfo) < $missionMeta['boost']){
+            myself()->_rspErr(2, 'ceg not enough');
             return;
         }
         myself()->_decItems(array(