diff --git a/Doc/lib/libundoc.tex b/Doc/lib/libundoc.tex
index b5256704ba4..16c99da1bb9 100644
--- a/Doc/lib/libundoc.tex
+++ b/Doc/lib/libundoc.tex
@@ -40,9 +40,6 @@ Some of these are very old and/or not very robust; marked with ``hmm.''
 \item[pty.py]
 --- Pseudo terminal utilities
 
-\item[tty.py]
---- Terminal utilities
-
 \item[bdb.py]
 --- A generic Python debugger base class (used by pdb)