diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index 7b516df..7ee6c39 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -1356,7 +1356,7 @@ void Human::AddBuff(MetaData::Buff* buff_meta)
     room->frame_event.AddBuff(this, buff);
     {
         room->xtimer.AddDeadLineTimerAndAttach(
-                                               buff_meta->i->duration_time() / SERVER_FRAME_RATE,
+                                               buff_meta->i->duration_time() * SERVER_FRAME_RATE,
                                                a8::XParams()
                                                .SetSender(this)
                                                .SetParam1(buff_meta->i->buff_id()),