diff --git a/csharp/dev.doloro.animator-as-crab/V1/Editor/Crab/AacCrabWindow.cs b/csharp/dev.doloro.animator-as-crab/V1/Editor/Crab/AacCrabWindow.cs
index 1a61226..fda166f 100644
--- a/csharp/dev.doloro.animator-as-crab/V1/Editor/Crab/AacCrabWindow.cs
+++ b/csharp/dev.doloro.animator-as-crab/V1/Editor/Crab/AacCrabWindow.cs
@@ -3,6 +3,7 @@ using System.IO;
 using UnityEditor;
 using UnityEditor.Animations;
 using UnityEngine;
+using AnimatorAsCode.V1;
 
 namespace AnimatorAsCrab.V1
 {