diff --git a/src/data/ability.ts b/src/data/ability.ts
index a811da27b9f..491a14ba621 100644
--- a/src/data/ability.ts
+++ b/src/data/ability.ts
@@ -2540,6 +2540,7 @@ export class PreApplyBattlerTagAbAttr extends AbAttr {
  */
 export class PreApplyBattlerTagImmunityAbAttr extends PreApplyBattlerTagAbAttr {
   private immuneTagType: BattlerTagType;
+  private battlerTag: BattlerTag;
 
   constructor(immuneTagType: BattlerTagType) {
     super();
@@ -2550,6 +2551,7 @@ export class PreApplyBattlerTagImmunityAbAttr extends PreApplyBattlerTagAbAttr {
   applyPreApplyBattlerTag(pokemon: Pokemon, passive: boolean, tag: BattlerTag, cancelled: Utils.BooleanHolder, args: any[]): boolean {
     if (tag.tagType === this.immuneTagType) {
       cancelled.value = true;
+      this.battlerTag = tag;
       return true;
     }
 
@@ -2560,7 +2562,7 @@ export class PreApplyBattlerTagImmunityAbAttr extends PreApplyBattlerTagAbAttr {
     return i18next.t("abilityTriggers:battlerTagImmunity", {
       pokemonNameWithAffix: getPokemonNameWithAffix(pokemon),
       abilityName,
-      battlerTagName: (args[0] as BattlerTag).getDescriptor()
+      battlerTagName: this.battlerTag.getDescriptor()
     });
   }
 }
@@ -4837,7 +4839,7 @@ export function initAbilities() {
       .attr(MoveTypeChangeAttr, Type.ICE, 1.2, (user, target, move) => move.type === Type.NORMAL),
     new Ability(Abilities.SWEET_VEIL, 6)
       .attr(UserFieldStatusEffectImmunityAbAttr, StatusEffect.SLEEP)
-      .attr(BattlerTagImmunityAbAttr, BattlerTagType.DROWSY)
+      .attr(UserFieldBattlerTagImmunityAbAttr, BattlerTagType.DROWSY)
       .ignorable()
       .partial(), // Mold Breaker ally should not be affected by Sweet Veil
     new Ability(Abilities.STANCE_CHANGE, 6)