diff --git a/contrib/bc/bc/main.c b/contrib/bc/bc/main.c
index 71b46a6ceb53..4170bb58b874 100644
--- a/contrib/bc/bc/main.c
+++ b/contrib/bc/bc/main.c
@@ -129,6 +129,10 @@ parse_args (argc, argv)
 	  warn_not_std = TRUE;
 	  break;
 
+	case 0:
+	  /* long options */
+	  break;
+
 	default:
 	  usage(argv[0]);
 	  exit (1);