diff --git a/usr.bin/netstat/main.c b/usr.bin/netstat/main.c
index af532a6eae10..ce9e81aeb761 100644
--- a/usr.bin/netstat/main.c
+++ b/usr.bin/netstat/main.c
@@ -242,6 +242,8 @@ main(int argc, char *argv[])
 	af = AF_UNSPEC;
 
 	argc = xo_parse_args(argc, argv);
+	if (argc < 0)
+		exit(EXIT_FAILURE);
 
 	while ((ch = getopt(argc, argv, "46AaBbdF:f:ghI:iLlM:mN:np:Qq:RrSTsuWw:xz"))
 	    != -1)