diff --git a/rigs/kenwood/ic10.c b/rigs/kenwood/ic10.c
index 452aab2de..b92c8f211 100644
--- a/rigs/kenwood/ic10.c
+++ b/rigs/kenwood/ic10.c
@@ -234,12 +234,9 @@ int ic10_get_vfo(RIG *rig, vfo_t *vfo)
 
 int ic10_set_split_vfo(RIG *rig, vfo_t vfo, split_t split, vfo_t txvfo)
 {
-    char ackbuf[64];
-    int ack_len;
-
     rig_debug(RIG_DEBUG_VERBOSE, "%s: called\n", __func__);
     return ic10_transaction(rig, split == RIG_SPLIT_ON ? "SP1;" : "SP0;", 4,
-                            ackbuf, &ack_len);
+                            NULL, 0);
 }
 
 
diff --git a/rigs/kenwood/ts440.c b/rigs/kenwood/ts440.c
index 9728a610f..ba079d84f 100644
--- a/rigs/kenwood/ts440.c
+++ b/rigs/kenwood/ts440.c
@@ -155,8 +155,6 @@ const struct rig_caps ts440_caps =
     .get_freq =  ic10_get_freq,
     .set_rit =  kenwood_set_rit,
     .get_rit =  kenwood_get_rit,
-    .set_xit =  kenwood_set_xit,
-    .get_xit =  kenwood_get_xit,
     .set_mode =  kenwood_set_mode,
     .get_mode =  ic10_get_mode,
     .set_vfo =  ic10_set_vfo,