diff --git a/doc/lib.txt b/doc/lib.txt
index 1c0278068..f43228151 100644
--- a/doc/lib.txt
+++ b/doc/lib.txt
@@ -325,6 +325,10 @@ Parsers
 * `rstgen <rstgen.html>`_
   This module implements a generator of HTML/Latex from reStructuredText.
 
+* `sexp <sexp.html>`_
+  High performance sexp parser and generator, mainly for communication
+  with emacs.
+
 
 XML Processing
 --------------
diff --git a/web/news.txt b/web/news.txt
index 9719fb8d7..e00d937f5 100644
--- a/web/news.txt
+++ b/web/news.txt
@@ -223,6 +223,7 @@ Library additions
   space between ``.. <`` and ``.. ^`` is not necessary anymore.
 - Added ``system.xlen`` for strings and sequences to get back the old ``len``
   operation that doesn't check for ``nil`` for efficiency.
+- Added sexp.nim to parse and generate sexp.
 
 
 Bugfixes