diff --git a/cli/broadlink_discovery b/cli/broadlink_discovery
index 1c6b80b..276884c 100755
--- a/cli/broadlink_discovery
+++ b/cli/broadlink_discovery
@@ -7,7 +7,7 @@ import broadlink
 parser = argparse.ArgumentParser(fromfile_prefix_chars='@')
 parser.add_argument("--timeout", type=int, default=5, help="timeout to wait for receiving discovery responses")
 parser.add_argument("--ip", default=None, help="ip address to use in the discovery")
-parser.add_argument("--dst-ip", default=None, help="destination ip address to use in the discovery")
+parser.add_argument("--dst-ip", default="255.255.255.255", help="destination ip address to use in the discovery")
 args = parser.parse_args()
 
 print("Discovering...")