diff --git a/icom/ic7100.c b/icom/ic7100.c
index 902407d9c..ff3c80224 100644
--- a/icom/ic7100.c
+++ b/icom/ic7100.c
@@ -109,7 +109,7 @@ const struct rig_caps ic7100_caps = {
 .copyright =  "LGPL",
 .status =  RIG_STATUS_UNTESTED,
 .rig_type =  RIG_TYPE_TRANSCEIVER,
-.ptt_type =  RIG_PTT_SERIAL_CAT,
+.ptt_type =  RIG_PTT_RIG,
 .dcd_type =  RIG_DCD_RIG,
 .port_type =  RIG_PORT_SERIAL,
 .serial_rate_min =  300,
diff --git a/include/hamlib/rig.h b/include/hamlib/rig.h
index faf3fd70a..3842cb91b 100644
--- a/include/hamlib/rig.h
+++ b/include/hamlib/rig.h
@@ -413,13 +413,12 @@ typedef enum {
  */
 typedef enum {
   RIG_PTT_NONE = 0,		/*!< No PTT available */
-  RIG_PTT_RIG,			/*!< Legacy PTT */
+  RIG_PTT_RIG,			/*!< Legacy PTT (CAT PTT) */
   RIG_PTT_SERIAL_DTR,		/*!< PTT control through serial DTR signal */
   RIG_PTT_SERIAL_RTS,		/*!< PTT control through serial RTS signal */
   RIG_PTT_PARALLEL,		/*!< PTT control through parallel port */
-  RIG_PTT_RIG_MICDATA,		/*!< Legacy PTT, supports RIG_PTT_ON_MIC/RIG_PTT_ON_DATA */
-  RIG_PTT_CM108,		/*!< PTT control through CM108 GPIO pin */
-  RIG_PTT_SERIAL_CAT		/*!< PTT control through serial command sequence*/
+  RIG_PTT_RIG_MICDATA,		/*!< Legacy PTT (CAT PTT), supports RIG_PTT_ON_MIC/RIG_PTT_ON_DATA */
+  RIG_PTT_CM108		/*!< PTT control through CM108 GPIO pin */
 } ptt_type_t;
 
 /**
diff --git a/src/rig.c b/src/rig.c
index 02291190c..6297a8397 100644
--- a/src/rig.c
+++ b/src/rig.c
@@ -498,7 +498,6 @@ int HAMLIB_API rig_open(RIG *rig)
 	case RIG_PTT_NONE:
 	case RIG_PTT_RIG:
 	case RIG_PTT_RIG_MICDATA:
-	case RIG_PTT_SERIAL_CAT:
 		break;
 	case RIG_PTT_SERIAL_RTS:
 	case RIG_PTT_SERIAL_DTR:
@@ -678,7 +677,6 @@ int HAMLIB_API rig_close(RIG *rig)
 	case RIG_PTT_NONE:
 	case RIG_PTT_RIG:
 	case RIG_PTT_RIG_MICDATA:
-	case RIG_PTT_SERIAL_CAT:
 		break;
 	case RIG_PTT_SERIAL_RTS:
 		ser_set_rts(&rs->pttport, RIG_PTT_OFF);
@@ -1243,12 +1241,6 @@ int HAMLIB_API rig_set_ptt(RIG *rig, vfo_t vfo, ptt_t ptt)
 	case RIG_PTT_SERIAL_RTS:
 		return ser_set_rts(&rig->state.pttport, ptt!=RIG_PTT_OFF);
 
-	case RIG_PTT_SERIAL_CAT:
-		if (ptt == RIG_PTT_ON_MIC || ptt == RIG_PTT_ON_DATA)
-			ptt = RIG_PTT_ON;
-		retcode = caps->set_ptt(rig, vfo, ptt);
-		return retcode;
-
 	case RIG_PTT_PARALLEL:
 		return par_ptt_set(&rig->state.pttport, ptt);