diff --git a/README.md b/README.md
index 8df2353..f3e0cbf 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,6 @@
 # vpn-install
 Simple PPTP, L2TP/IPsec, OpenVPN installers
+
+**Under development (not fully tested).**
+
+**Please test only on virtual machines.**