diff --git a/README.md b/README.md
index 90edcbe..efa4e8c 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ Reconnect after the reboot:
 ssh root@SERVER_IP  
 
 
-*Optional: Connect through VNC* {  
+*Optional(Not recommended because you cannot copy and paste between the VNC session and your PC): Connect through VNC* {  
 vncviewer VNC_IP:VNC_PORT  
 enter the vnc password(max 8 character)