Added label{module-spam}
diff --git a/Doc/libcommands.tex b/Doc/libcommands.tex
index f2fcb79..fe6f929 100644
--- a/Doc/libcommands.tex
+++ b/Doc/libcommands.tex
@@ -1,4 +1,5 @@
 \section{Standard module \sectcode{commands}}	% If implemented in Python
+\label{module-commands}
 \stmodindex{commands}
 
 The \code{commands} module contains wrapper functions for \code{os.popen()}