diff --git a/src/battle_util.c b/src/battle_util.c
index e0146c265f..4ba6b5a0f9 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -7978,7 +7978,7 @@ u8 ItemBattleEffects(u8 caseID, u32 battler, bool32 moveTurn)
                 break;
             case HOLD_EFFECT_CURE_STATUS: // only Toxic Chain's interaction with Knock Off
             case HOLD_EFFECT_CURE_PSN:
-                if (gBattleMons[battler].status1 & STATUS1_PSN_ANY && !UnnerveOn(battler, gLastUsedItem) && gLastUsedAbility == ABILITY_TOXIC_CHAIN && gMovesInfo[gCurrentMove].effect == EFFECT_KNOCK_OFF)
+                if (gBattleMons[battler].status1 & STATUS1_PSN_ANY && !UnnerveOn(battler, gLastUsedItem) && GetBattlerAbility(gBattlerAttacker) == ABILITY_TOXIC_CHAIN && gMovesInfo[gCurrentMove].effect == EFFECT_KNOCK_OFF)
                 {
                     gBattleScripting.battler = battler;
                     gBattleMons[battler].status1 &= ~(STATUS1_PSN_ANY | STATUS1_TOXIC_COUNTER);