diff --git a/src/data/abilities/ability.ts b/src/data/abilities/ability.ts
index 97953dd6169..ccf1366023c 100644
--- a/src/data/abilities/ability.ts
+++ b/src/data/abilities/ability.ts
@@ -2120,7 +2120,7 @@ export abstract class PostAttackAbAttr extends AbAttr {
   /** The default `attackCondition` requires that the selected move is a damaging move */
   constructor(
     attackCondition: PokemonAttackCondition = (_user, _target, move) => {
-      if (!_user) {
+      if (isNullOrUndefined(user)) {
         return false;
       }