diff --git a/mem2swap.c b/mem2swap.c
--- a/mem2swap.c
+++ b/mem2swap.c
@@ -40,6 +40,8 @@
     else {
         printf ("\tUsage: %s [MEM]\n\n", argv[0]);
         printf ("Report bugs to mbroeker@largo.homelinux.org\n");
+
+        perror ("Limit Error");
         return EXIT_FAILURE;
     }