diff --git a/doc/texi2pod.pl b/doc/texi2pod.pl
index 94323be340..5e8814feff 100755
--- a/doc/texi2pod.pl
+++ b/doc/texi2pod.pl
@@ -1,4 +1,4 @@
-#! /usr/bin/perl -w
+#! /usr/bin/perl
 
 #   Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
 
@@ -23,6 +23,8 @@
 # markup to Perl POD format.  It's intended to be used to extract
 # something suitable for a manpage from a Texinfo document.
 
+use warnings;
+
 $output = 0;
 $skipping = 0;
 %sects = ();