diff --git a/app/Enums/Score.php b/app/Enums/Score.php
index 8d653a4..56bf57d 100644
--- a/app/Enums/Score.php
+++ b/app/Enums/Score.php
@@ -18,6 +18,7 @@ enum Score: string
     case WIN51 = '5:1';
     case WIN52 = '5:2';
     case WIN_OTHER = '胜其他';
+    case DRAW00 = '0:0';
     case DRAW11 = '1:1';
     case DRAW22 = '2:2';
     case DRAW33 = '3:3';
diff --git a/app/Services/Api/ActivityGameService.php b/app/Services/Api/ActivityGameService.php
index c6f39fe..f8d7f90 100644
--- a/app/Services/Api/ActivityGameService.php
+++ b/app/Services/Api/ActivityGameService.php
@@ -52,6 +52,7 @@ class ActivityGameService
                 $userActivity = new UserActivity();
                 $userActivity->user_id = $user->id;
                 $userActivity->activity_id = $game->activity_id;
+                $userActivity->last_join_at = now();
                 $userActivity->save();
             }