diff --git a/server/gameserver/hero.cc b/server/gameserver/hero.cc
index 18da848..acf26cb 100644
--- a/server/gameserver/hero.cc
+++ b/server/gameserver/hero.cc
@@ -306,6 +306,9 @@ void Hero::InitAI()
         Buff* buff = GetBuffByUniId(buff_uniid);
         if (buff) {
             int peace_time = 1000 * 6;
+            if (ai->ai_meta->i->ai_kind() == kAI_MineSweeper) {
+                peace_time = 0;
+            }
             if (ai->ai_meta->i->peace_time() > 0) {
                 peace_time += ai->ai_meta->i->peace_time();
             }