diff --git a/assets/Scripts/Game/Unit/Enemy/Enemy.ts b/assets/Scripts/Game/Unit/Enemy/Enemy.ts
index aea7b15..8eca129 100644
--- a/assets/Scripts/Game/Unit/Enemy/Enemy.ts
+++ b/assets/Scripts/Game/Unit/Enemy/Enemy.ts
@@ -143,6 +143,8 @@ export class Enemy extends Component {
             this.sprite.node.active = false;
             await delay(200);
 
+            if (this.sprite == null) break;
+
             this.sprite.node.active = true;
             await delay(200);
         }