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-rw-r--r--src/hostid.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/hostid.c b/src/hostid.c
index 1f89fda70..1f10480a3 100644
--- a/src/hostid.c
+++ b/src/hostid.c
@@ -69,7 +69,7 @@ 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 (argc > 1)
{