Fixed index references to modules.
diff --git a/Doc/libhttplib.tex b/Doc/libhttplib.tex
index ca5c673..5b2cf85 100644
--- a/Doc/libhttplib.tex
+++ b/Doc/libhttplib.tex
@@ -8,7 +8,7 @@
 This module defines a class which implements the client side of the
 HTTP protocol.  It is normally not used directly --- the module
 \code{urllib} uses it to handle URLs that use HTTP.
-\stmodindex{urllib}
+\refstmodindex{urllib}
 
 The module defines one class, \code{HTTP}.  An \code{HTTP} instance
 represents one transaction with an HTTP server.  It should be
@@ -98,7 +98,7 @@
 to the reply code; and \var{headers} is an instance of the class
 \code{mimetools.Message} containing the headers received from the server.
 See the description of the \code{mimetools} module.
-\stmodindex{mimetools}
+\refstmodindex{mimetools}
 \end{funcdesc}
 
 \begin{funcdesc}{getfile}{}