diff --git a/Doc/lib/lib.tex b/Doc/lib/lib.tex
index b0f5705545d5..33bb9c5be2ae 100644
--- a/Doc/lib/lib.tex
+++ b/Doc/lib/lib.tex
@@ -90,6 +90,7 @@ and how to embed it in other applications.
 \input{libtoken}
 \input{libkeyword}
 \input{libtokenize}
+\input{libtabnanny}
 \input{libpyclbr}
 \input{libcode}
 \input{libcodeop}