diff --git a/src/UniTask/Assets/Plugins/UniTask/Runtime/PlayerLoopHelper.cs b/src/UniTask/Assets/Plugins/UniTask/Runtime/PlayerLoopHelper.cs
index 6389d3c..df9c000 100644
--- a/src/UniTask/Assets/Plugins/UniTask/Runtime/PlayerLoopHelper.cs
+++ b/src/UniTask/Assets/Plugins/UniTask/Runtime/PlayerLoopHelper.cs
@@ -211,8 +211,6 @@ namespace Cysharp.Threading.Tasks
             EditorApplication.update += ForceEditorPlayerLoopUpdate;
         }
 
-        static double beforeCalledTime;
-
         private static void ForceEditorPlayerLoopUpdate()
         {
             if (EditorApplication.isPlayingOrWillChangePlaymode || EditorApplication.isCompiling || EditorApplication.isUpdating)