diff --git a/free-programming-books.md b/free-programming-books.md index d88fc3b6a..7fe42fedc 100644 --- a/free-programming-books.md +++ b/free-programming-books.md @@ -253,7 +253,7 @@ ###Emacs * [GNU Emacs Manual, 16th Edition, v. 22](http://shop.fsf.org/product/gnu-emacs-manual-16th-edition/) -* [An Introduction to Programming in Emacs Lisp, 3rd Edition](http://www.gnu.org/software/emacs/emacs-lisp-intro/) +* [An Introduction to Programming in Emacs Lisp, 3rd Edition](https://www.gnu.org/software/emacs/manual/html_node/eintr/index.html) ###Erlang