diff --git a/deallocvt.c b/deallocvt.c
index 9c477d2..a5b5a03 100644
--- a/deallocvt.c
+++ b/deallocvt.c
@@ -17,7 +17,7 @@
 {
 	int fd, num, i;
 
-	if ((argc != 2) || (**(argv + 1) == '-'))
+	if ((argc > 2) || ((argv == 2) && (**(argv + 1) == '-')))
 		usage(deallocvt_usage);
 
 	fd = get_console_fd("/dev/console");