diff --git a/server/gameserver/app.cc b/server/gameserver/app.cc
index bf46871..0bb4e9e 100644
--- a/server/gameserver/app.cc
+++ b/server/gameserver/app.cc
@@ -66,7 +66,7 @@ static void SavePerfLog()
         ("max_rundelay:%d room_num:%d player_num:%d online_num:%d alive_count:%d "
          "sys_request_delay:%d user_request_delay:%d http_pending_num:%d real_alive_count:%d "
          "account_num:%d level0_num:%d level1_num:%d "
-         "max_full_obj:%d max_part_obj:%d max_bullet:%d max_packet:%d"
+         "max_full_obj:%d max_part_obj:%d max_bullet:%d max_packet:%d "
          "his_max_full_obj:%d his_max_part_obj:%d his_max_bullet:%d his_max_packet:%d",
          {
           PerfMonitor::Instance()->max_run_delay_time,