diff --git a/web/app/controllers/contests.php b/web/app/controllers/contests.php
index 0ecb2be..a1a8e13 100644
--- a/web/app/controllers/contests.php
+++ b/web/app/controllers/contests.php
@@ -62,7 +62,7 @@ EOD;
 	);
 
 	if ($rest_second <= 86400) {
-		$notification = json_encode($upcoming_contest_name . "已经开始了。是否要跳转到比赛页面？");
+		$notification = json_encode($upcoming_contest_name . " 已经开始了。是否要跳转到比赛页面？");
 		echo <<<EOD
 <div class="text-center bot-buffer-lg">
 <div class="text-warning">$upcoming_contest_name 倒计时</div>