diff --git a/aliases.sh b/aliases.sh
index 5bfda22..e5c1d6d 100644
--- a/aliases.sh
+++ b/aliases.sh
@@ -39,6 +39,7 @@ alias kittyx='nohup kitty &'
 
 alias isnet='ssh -p666 isnet.uk -t tmux'
 alias b1.isnet='ssh -p666 b1.isnet.uk -t tmux'
+alias s1.isnet='ssh -p666 s1.isnet.uk -t tmux'
 alias hmb.isnet='ssh -p666 hmb.isnet.uk -t tmux'
 alias kvm.isnet='ssh -p666 kvm.isnet.uk -t tmux'
 alias ubuntu666='ssh ubuntu666 -t tmux'