diff --git a/src/field/pokemon.ts b/src/field/pokemon.ts
index 9f686fa4bdc..25899f0a4f4 100644
--- a/src/field/pokemon.ts
+++ b/src/field/pokemon.ts
@@ -367,7 +367,7 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
    */
   public battleData: PokemonBattleData = new PokemonBattleData();
   /** Data that resets on switch or battle end (stat stages, battler tags, etc.) */
-  public summonData: PokemonSummonData = new PokemonSummonData;
+  public summonData: PokemonSummonData = new PokemonSummonData();
   /** Wave data correponding to moves/ability information revealed */
   public waveData: PokemonWaveData = new PokemonWaveData();
   /** Per-turn data like hit count & flinch tracking */