diff --git a/README.md b/README.md
index a23c719..08fad54 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,8 @@ I plan to bind this to a higher level language when complete
 ### 1. Source Patches:
 Client folder contains them
 
+Back up your source code first!! (or just don't delete minecraft.rar)
+
 ### 2. Create a mod:
 Create a main function: