diff --git a/server/gameserver/creature.cc b/server/gameserver/creature.cc
index 1d341297..ffd96cd2 100644
--- a/server/gameserver/creature.cc
+++ b/server/gameserver/creature.cc
@@ -1734,10 +1734,12 @@ void Creature::UpdatePoisoning()
         if (room->IsPveRoom()) {
             dmg = room->GetGasData().new_area_meta->i->hurt();
         }
+        dmg = dmg * GetMaxHP();
         dmg *= 1 + GetAbility()->GetAttrRate(kHAT_PoisoningReduction);
         if (room->IsPveRoom()) {
+            dmg = std::max(1.0f, dmg);
         } else {
-            dmg = std::max(10.0f, dmg);
+            dmg = std::max(1.0f, dmg);
         }
         DecHP(dmg, VP_Gas, TEXT("battle_server_killer_gas", "毒圈"), VW_Gas);
         if (dead) {