diff --git a/README.md b/README.md
index d71f0b9..3c3fc5f 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# ExpandedRoofing [![RimWorld Alpha 18](https://img.shields.io/badge/RimWorld-Alpha%2018-brightgreen.svg)](http://rimworldgame.com/)
+# ExpandedRoofing [![RimWorld Beta 18](https://img.shields.io/badge/RimWorld-Alpha%2018-brightgreen.svg)](http://rimworldgame.com/)
 
 Adds customizable roofing, with transparent greenhouse roofing and photovoltaic solar roofing. Reworked from Vendan's original idea.