diff --git a/lib/data/global_var.js b/lib/data/global_var.js
index b72f9fb..c7a118d 100644
--- a/lib/data/global_var.js
+++ b/lib/data/global_var.js
@@ -42,8 +42,9 @@ let global_var = {
                 LotteryOrder
                     .map(it => LotteryOrderMap.get(it))
                     .filter(it => typeof it === "string")
-                    .flatMap(lottery_option => config[lottery_option]
-                        .map(it => [lottery_option, it])));
+                    .map(lottery_option => config[lottery_option].map(it => [lottery_option, it]))
+                    .flat()
+            );
             this.set('remoteconfig', await getRemoteConfig());
         }
         await createDir('dyids');