diff --git a/src/data/ability.ts b/src/data/ability.ts
index 3ce0c260a3f..99d41fed1c9 100644
--- a/src/data/ability.ts
+++ b/src/data/ability.ts
@@ -1056,9 +1056,9 @@ export class PostDefendAbilitySwapAbAttr extends PostDefendAbAttr {
     if (move.checkFlag(MoveFlags.MAKES_CONTACT, attacker, pokemon)
       && !attacker.getAbility().hasAttr(UnswappableAbilityAbAttr) && !move.hitsSubstitute(attacker, pokemon)) {
       if (!simulated) {
-        const tempAbilityId = attacker.getAbility().id;
-        attacker.summonData.ability = pokemon.getAbility().id;
-        pokemon.summonData.ability = tempAbilityId;
+        const tempAbility = attacker.getAbility();
+        attacker.setTempAbility(pokemon.getAbility());
+        pokemon.setTempAbility(tempAbility);
       }
       return true;
     }