diff --git a/Doc/lib/libparser.tex b/Doc/lib/libparser.tex
index 434786b..a27c562 100644
--- a/Doc/lib/libparser.tex
+++ b/Doc/lib/libparser.tex
@@ -275,6 +275,8 @@
 first argument may change to object methods in the future.
 
 Ordered and equality comparisons are supported between AST objects.
+Pickling of AST objects (using the \module{pickle} module) is also
+supported.
 
 \begin{datadesc}{ASTType}
 The type of the objects returned by \function{expr()},