diff --git a/util/spkmodem_recv/spkmodem-recv.c b/util/spkmodem_recv/spkmodem-recv.c
index a910b054bace4c502cc9532dc278ebe7e8a5df9b..ecee6fbbf6f81796c642e4ab5e0a038352ff830d 100644
--- a/util/spkmodem_recv/spkmodem-recv.c
+++ b/util/spkmodem_recv/spkmodem-recv.c
@@ -51,12 +51,15 @@ read_sample (void)
 }
 
 int
-main ()
+main (int argc, char *argv[])
 {
 	int bitn = 7;
 	char c = 0;
 	int i;
 	int llp = 0;
+
+	(void)argc; (void)argv;
+
 	while (!feof (stdin)) {
 		if (lp > 3 * SAMPLES_PER_TRAME) {
 			bitn = 7;