Fix error message for hash option

1 files changed, 1 insertions, 1 deletions

diff --git a/sfmain.c b/sfmain.c
index 5b69eb2..0bedbea 100644
--- a/sfmain.c
+++ b/sfmain.c
@@ -710,7 +710,7 @@ int main(int argc, const char *argv[])
 					hash_chars = argv[++argi][0] - '0';
 				} 
 				else {
-					return invalid_arg(argv[argi]);
+					return arg_required(argv[argi]);
 				}
 			} else {
 				return invalid_arg(argv[argi]);