diff --git a/bin/tests/adb_test.c b/bin/tests/adb_test.c
index 44234fafa5..102e4fa6b8 100644
--- a/bin/tests/adb_test.c
+++ b/bin/tests/adb_test.c
@@ -58,7 +58,7 @@ check_result(isc_result_t result, char *msg)
 }
 
 int
-main()
+main(int argc, char **argv)
 {
 	isc_task_t *t1, *t2;
 	isc_sockaddr_t sockaddr;
@@ -69,6 +69,9 @@ main()
 	unsigned char namestorage[512];
 	dns_adb_t *adb;
 
+	(void)argc;
+	(void)argv;
+
 	dns_result_register();
 
 	/*