diff --git a/rigs/kenwood/ts570.c b/rigs/kenwood/ts570.c
index fd1f57519..f3efc3148 100644
--- a/rigs/kenwood/ts570.c
+++ b/rigs/kenwood/ts570.c
@@ -902,7 +902,7 @@ struct rig_caps ts570s_caps =
     RIG_MODEL(RIG_MODEL_TS570S),
     .model_name = "TS-570S",
     .mfg_name =  "Kenwood",
-    .version =  BACKEND_VER ".2",
+    .version =  BACKEND_VER ".3",
     .copyright =  "LGPL",
     .status =  RIG_STATUS_STABLE,
     .rig_type =  RIG_TYPE_TRANSCEIVER,
@@ -914,7 +914,7 @@ struct rig_caps ts570s_caps =
     .serial_data_bits =  8,
     .serial_stop_bits =  1,
     .serial_parity =  RIG_PARITY_NONE,
-    .serial_handshake =  RIG_HANDSHAKE_NONE,
+    .serial_handshake =  RIG_HANDSHAKE_HARDWARE,
     .write_delay =  0,
     .post_write_delay =  30,
     .timeout = 500,