diff --git a/app/controllers/challenges_controller.rb b/app/controllers/challenges_controller.rb
index e73243b94..47c8fc68c 100644
--- a/app/controllers/challenges_controller.rb
+++ b/app/controllers/challenges_controller.rb
@@ -162,7 +162,7 @@ class ChallengesController < ApplicationController
     #@pass_games_map = @shixun.challenges.joins(:games).where(games: {status:2}).group(:challenge_id).reorder(nil).count
     #@play_games_map = @shixun.challenges.joins(:games).where(games: {status:[0,1]}).group(:challenge_id).reorder(nil).count
 
-    @challenges = @shixun.challenges.joins(join_sql).select(base_columns).uniq
+    @challenges = @shixun.challenges.joins(join_sql).select(base_columns)
 
     #@challenges = @shixun.challenges.fields_for_list
     @editable = @shixun.status == 0 # before_action：有判断权限，如果没发布，则肯定是管理人员