diff --git a/Doc/lib/libctypes.tex b/Doc/lib/libctypes.tex
index 563b9f6172f..ed39ae8cd44 100755
--- a/Doc/lib/libctypes.tex
+++ b/Doc/lib/libctypes.tex
@@ -1,5 +1,5 @@
 \ifx\locallinewidth\undefined\newlength{\locallinewidth}\fi
-%\setlength{\locallinewidth}{\linewidth}
+\setlength{\locallinewidth}{\linewidth}
 \section{\module{ctypes} --- A foreign function library for Python.}
 \declaremodule{standard}{ctypes}
 \moduleauthor{Thomas Heller}{theller@python.net}