diff --git a/server/gameserver/molotor_cocktail_mitask.cc b/server/gameserver/molotor_cocktail_mitask.cc
index 3d65a2e..e255c88 100644
--- a/server/gameserver/molotor_cocktail_mitask.cc
+++ b/server/gameserver/molotor_cocktail_mitask.cc
@@ -64,14 +64,14 @@ void MolotorCocktailMiTask::Check()
                  }
              }
              );
-        a8::Vec2 old_buff_vec2_param1 = sender.Get()->buff_vec2_param1;
-        sender.Get()->buff_vec2_param1 = sender.Get()->GetPos();
         for (Creature* target : objects) {
             if (!target->GetBuffById(meta->i->buffid())) {
+                a8::Vec2 old_buff_vec2_param1 = target->buff_vec2_param1;
+                target->buff_vec2_param1 = target->GetPos();
                 target->MustBeAddBuff(sender.Get(), meta->i->buffid());
+                target->buff_vec2_param1 = old_buff_vec2_param1;
             }
         }
-        sender.Get()->buff_vec2_param1 = old_buff_vec2_param1;
     }
 }
 
diff --git a/server/gameserver/posiongas_mitask.cc b/server/gameserver/posiongas_mitask.cc
index 9a4efc3..6a349b1 100644
--- a/server/gameserver/posiongas_mitask.cc
+++ b/server/gameserver/posiongas_mitask.cc
@@ -64,14 +64,14 @@ void PosionGasMiTask::Check()
                  }
              }
              );
-        a8::Vec2 old_buff_vec2_param1 = sender.Get()->buff_vec2_param1;
-        sender.Get()->buff_vec2_param1 = sender.Get()->GetPos();
         for (Creature* target : objects) {
             if (!target->GetBuffById(meta->i->buffid())) {
+                a8::Vec2 old_buff_vec2_param1 = target->buff_vec2_param1;
+                target->buff_vec2_param1 = target->GetPos();
                 target->MustBeAddBuff(sender.Get(), meta->i->buffid());
+                target->buff_vec2_param1 = old_buff_vec2_param1;
             }
         }
-        sender.Get()->buff_vec2_param1 = old_buff_vec2_param1;
     }
 }