diff --git a/Doc/lib/libsocksvr.tex b/Doc/lib/libsocksvr.tex
index 1e3cac3..a45b948 100644
--- a/Doc/lib/libsocksvr.tex
+++ b/Doc/lib/libsocksvr.tex
@@ -36,6 +36,8 @@
 Server classes have the same external methods and attributes, no
 matter what network protocol they use:
 
+\renewcommand{\indexsubitem}{(in module SocketServer)}
+
 %XXX should data and methods be intermingled, or separate?
 % how should the distinction between class and instance variables be
 % drawn?