diff --git a/Doc/lib/libgetopt.tex b/Doc/lib/libgetopt.tex
index d8f1de73bc1..7fe950ffa04 100644
--- a/Doc/lib/libgetopt.tex
+++ b/Doc/lib/libgetopt.tex
@@ -145,5 +145,5 @@ if __name__ == "__main__":
 \end{verbatim}
 
 \begin{seealso}
-  \seemodule{optparse}{More object-oriented command line option parsing}
+  \seemodule{optparse}{More object-oriented command line option parsing.}
 \end{seealso}