diff --git a/src/phases.ts b/src/phases.ts
index 53ccd110f9c..9e6653a8006 100644
--- a/src/phases.ts
+++ b/src/phases.ts
@@ -3125,7 +3125,9 @@ export class ShowAbilityPhase extends PokemonPhase {
     const pokemon = this.getPokemon();
 
     this.scene.abilityBar.showAbility(pokemon, this.passive);
-    pokemon.battleData.abilityRevealed = true;
+    if (pokemon.battleData) {
+      pokemon.battleData.abilityRevealed = true;
+    }
 
     this.end();
   }