Autoload within #'keymapp, as documented. src/ChangeLog addition: 2014-07-02 Aidan Kehoe <kehoea@parhasard.net> * keymap.c (Fkeymapp): Autoload within this, as documented. Our callers are not prepared to do the intelligent thing if a symbol that is fboundp to an autoloaded keymap, is not itself #'keymapp. lisp/ChangeLog addition: 2014-07-02 Aidan Kehoe <kehoea@parhasard.net> * byte-optimize.el (side-effect-free-fns): #'keymapp is not side-effect-free, it can autoload.