1 files changed, 1 insertions, 1 deletions
diff --git a/src/sum.c b/src/sum.c
index c2c7fc076..8a76c23e0 100644
--- a/src/sum.c
+++ b/src/sum.c
@@ -212,7 +212,7 @@ main (int argc, char **argv)
 
   have_read_stdin = 0;
 
-  parse_long_options (argc, argv, "sum", GNU_PACKAGE, VERSION,
+  parse_long_options (argc, argv, PROGRAM_NAME, GNU_PACKAGE, VERSION,
 		      "Kayvan Aghaiepour and David MacKenzie", usage);
 
   while ((optc = getopt_long (argc, argv, "rs", longopts, NULL)) != -1)