diff --git a/server/gameserver/skill.cc b/server/gameserver/skill.cc
index 8ae6f935..48cb2bbe 100644
--- a/server/gameserver/skill.cc
+++ b/server/gameserver/skill.cc
@@ -518,7 +518,7 @@ void Skill::ProcSWZB()
                   0
                   );
              Entity* killer = owner->room->GetEntityByUniId(killer_id);
-             if (killer && !meta->raw_phases.empty()) {
+             if (killer && killer != owner && !meta->raw_phases.empty()) {
                  owner->over_delay_time = meta->raw_phases.at(0).param1;
              }
 #ifdef DEBUG
@@ -546,7 +546,7 @@ void Skill::ProcSWZB()
          {
              int killer_id = std::any_cast<int>(params.at(0));
              Entity* killer = owner->room->GetEntityByUniId(killer_id);
-             if (killer) {
+             if (killer && killer != owner) {
                  owner->TryAddBuff(owner, 209016);
              }
          });