diff --git a/sync.c b/sync.c
index b3a3cb1..a766fbc 100644
--- a/sync.c
+++ b/sync.c
@@ -12,7 +12,12 @@ usage(void)
 int
 main(int argc, char *argv[])
 {
-	if (argc != 1)
+	ARGBEGIN {
+	default:
+		usage();
+	} ARGEND;
+
+	if (argc)
 		usage();
 	sync();
 
diff --git a/unlink.c b/unlink.c
index f2a1fff..077959c 100644
--- a/unlink.c
+++ b/unlink.c
@@ -12,11 +12,16 @@ usage(void)
 int
 main(int argc, char *argv[])
 {
-	if (argc != 2)
+	ARGBEGIN {
+	default:
+		usage();
+	} ARGEND;
+
+	if (argc != 1)
 		usage();
 
-	if (unlink(argv[1]) < 0)
-		eprintf("unlink: '%s':", argv[1]);
+	if (unlink(argv[0]) < 0)
+		eprintf("unlink: '%s':", argv[0]);
 
 	return 0;
 }