diff --git a/Install-preparations.md b/Install-preparations.md
index 5fba146..fe9f328 100644
--- a/Install-preparations.md
+++ b/Install-preparations.md
@@ -1,4 +1,4 @@
-# 1. Ubuntu:
+# 1. Ubuntu/Debian:
 
 The default `netcat` tool doesn't support `-4` , `-6` and local address, So, please install `netcat-openbsd` to support all the options.