diff --git a/README.md b/README.md
index 53490c298..d2341f0aa 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-## ✍ To install this fork use installer.comma.ai/infiniteCable2/master
+## ✍ To install this fork use installer.comma.ai/infiniteCable2/master (not Comma Four compatible)
 
 ![](https://user-images.githubusercontent.com/47793918/233812617-beab2e71-57b9-479e-8bff-c3931347ca40.png)