macro help

[Neil Watson <mutt@xxxxxxxxxxxxxxxx>]

I'm making my first attempt at macros.  Pseudo code:

While in index view;
Key stroke <ctrl>s;
Save current message to folder "spam";

I've tried this:

macro index \Cs "<save-message>=spam\n"

When I try it mutt locks up hard.  What have I done wrong?

--
Neil Watson               | Gentoo Linux
Network Administrator     | 
http://watson-wilson.ca   | 2.4.22-ac1 AMD Athlon(tm) MP 2000+ x 2