diff --git a/README.md b/README.md
index ec79f3e..6465279 100644
--- a/README.md
+++ b/README.md
@@ -101,3 +101,6 @@ Test it!
 [-] Integrate Fail2Ban > IpTables.
 
 [-] ....
+
+# Warn!
+1. If you want to use mariadb 10.+, You need to use Ubuntu amd64 only or don't compile nginx with mysql module! or you will have problems which i wasn't able to solve..