diff --git a/Doc/lib/libunix.tex b/Doc/lib/libunix.tex
index 9e1ea53aeaf..26628c891f6 100644
--- a/Doc/lib/libunix.tex
+++ b/Doc/lib/libunix.tex
@@ -46,4 +46,11 @@ process.
 \item[syslog]
 --- An interface to the \UNIX{} \code{syslog} library routines.
 
+\item[stat]
+--- Constants and functions for interpreting the results of
+\code{os.stat()}, \code{os.lstat()} and \code{os.fstat()}.
+
+\item[commands]
+--- Wrapper functions for \code{os.popen()}.
+
 \end{description}
diff --git a/Doc/libunix.tex b/Doc/libunix.tex
index 9e1ea53aeaf..26628c891f6 100644
--- a/Doc/libunix.tex
+++ b/Doc/libunix.tex
@@ -46,4 +46,11 @@ process.
 \item[syslog]
 --- An interface to the \UNIX{} \code{syslog} library routines.
 
+\item[stat]
+--- Constants and functions for interpreting the results of
+\code{os.stat()}, \code{os.lstat()} and \code{os.fstat()}.
+
+\item[commands]
+--- Wrapper functions for \code{os.popen()}.
+
 \end{description}