diff --git a/Doc/ref/ref2.tex b/Doc/ref/ref2.tex
index 726aa21..e9fab58 100644
--- a/Doc/ref/ref2.tex
+++ b/Doc/ref/ref2.tex
@@ -272,6 +272,13 @@
 
 % When adding keywords, use reswords.py for reformatting
 
+Note that although the identifier \code{as} can be used as part of the
+syntax of \keyword{import} statements, it is not currently a reserved
+word.
+
+In some future version of Python, the identifiers \code{as} and
+\code{None} will both become keywords.
+
 
 \subsection{Reserved classes of identifiers\label{id-classes}}