--- shield_purge.c	2011-03-26 23:00:30.664610809 -0500
+++ shield_purge.c	2011-03-26 23:39:42.983519849 -0500
@@ -74,6 +74,7 @@
 	{ "dry-run",	0, NULL, 'n' },
 	{ "list",		0, NULL, 'l' },
 	{ "force",		0, NULL, 'f' },
+	{ 0,	0, NULL, 0 },
 };
 
 	while((opt = getopt_long(argc, argv, "hdc:nlf", long_options, NULL)) != -1) {