diff --git a/README.md b/README.md
index c726fb3..379b524 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 Class and editor-extension to more easily generate snapOffset.
 
 ## Usage
+1. Import [Oculus Integration](https://assetstore.unity.com/packages/tools/integration/oculus-integration-82022).
+
 1. Add "SnapOffssetGenerator" to OVRGrabbable object.  
 ![image01](https://github.com/udonba/SnapOffsetHelper/blob/images/usage_001.png)