diff --git a/Assets/Editor/NormalPainterWindow.cs b/Assets/Editor/NormalPainterWindow.cs
index eadc532..3b468fa 100644
--- a/Assets/Editor/NormalPainterWindow.cs
+++ b/Assets/Editor/NormalPainterWindow.cs
@@ -35,12 +35,20 @@ public static void Open()
         private void OnEnable()
         {
             isOpen = true;
+#if UNITY_2019_1_OR_NEWER
+            SceneView.duringSceneGui += OnSceneGUI;
+#else
             SceneView.onSceneGUIDelegate += OnSceneGUI;
+#endif
         }
 
         private void OnDisable()
         {
+#if UNITY_2019_1_OR_NEWER
+            SceneView.duringSceneGui += OnSceneGUI;
+#else
             SceneView.onSceneGUIDelegate -= OnSceneGUI;
+#endif
             isOpen = false;
         }