diff --git a/README.md b/README.md
index 6bbe81a..fdfca15 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@ What difference? My fork have:
 * Rendering optimisations.
 * Editor preview.
 * Editor Spawn Menu.
+(make sure that Container script has references to shader and material)
 
 Now goes default readme.
 # Unity 3D metaballs