diff --git a/README.md b/README.md
index c5b9cd86..6aebbdd0 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 Based and maintained from Citadel Station.
 
+## Warning you will need Byond Compiler [513.1525] or higher to compile the source code.
+
 [![forinfinityandbyond](https://user-images.githubusercontent.com/5211576/29499758-4efff304-85e6-11e7-8267-62919c3688a9.gif)](https://www.reddit.com/r/SS13/comments/5oplxp/what_is_the_main_problem_with_byond_as_an_engine/dclbu1a)
 
 [![Krihelimeter](http://www.krihelinator.xyz/badge/quotefox/Hyper-Station-13)](http://www.krihelinator.xyz)