diff --git a/Doc/libstruct.tex b/Doc/libstruct.tex
index 19f674c..2ed4f2c 100644
--- a/Doc/libstruct.tex
+++ b/Doc/libstruct.tex
@@ -13,7 +13,7 @@
 
 The module defines the following exception and functions:
 
-\renewcommand{\indexsubitem}{(in module struct)}
+\setindexsubitem{(in module struct)}
 \begin{excdesc}{error}
   Exception raised on various occasions; argument is a string
   describing what is wrong.
@@ -120,7 +120,7 @@
 Examples (all using native byte order, size and alignment, on a
 big-endian machine):
 
-\bcode\begin{verbatim}
+\begin{verbatim}
 >>> from struct import *
 >>> pack('hhl', 1, 2, 3)
 '\000\001\000\002\000\000\000\003'
@@ -129,7 +129,7 @@
 >>> calcsize('hhl')
 8
 >>> 
-\end{verbatim}\ecode
+\end{verbatim}
 %
 Hint: to align the end of a structure to the alignment requirement of
 a particular type, end the format with the code for that type with a