1 files changed, 1 insertions, 1 deletions
diff --git a/src/pwd.c b/src/pwd.c
index 17a80a69e..596473449 100644
--- a/src/pwd.c
+++ b/src/pwd.c
@@ -68,7 +68,7 @@ main (int argc, char **argv)
   atexit (close_stdout);
 
   parse_long_options (argc, argv, PROGRAM_NAME, GNU_PACKAGE, VERSION,
-		      usage, AUTHORS, NULL);
+		      usage, AUTHORS, (char const *) NULL);
 
   if (1 < argc)
     error (0, 0, _("ignoring non-option arguments"));