diff --git a/src/avrdude.conf.in b/src/avrdude.conf.in
index 523137fd..b6418742 100644
--- a/src/avrdude.conf.in
+++ b/src/avrdude.conf.in
@@ -1274,6 +1274,22 @@ programmer
   usbpid = 0x2177, 0x2178, 0x2179;
 ;
 
+programmer
+  id    = "pickit4_pdi";
+  desc  = "MPLAB(R) PICkit 4 in PDI mode";
+  type  = "jtagice3_pdi";
+  connection_type = usb;
+  usbpid = 0x2177, 0x2178, 0x2179;
+;
+
+programmer
+   id    = "pickit4_isp";
+   desc  = "MPLAB(R) PICkit 4 in ISP mode";
+   type  = "jtagice3_isp";
+   connection_type = usb;
+   usbpid = 0x2177, 0x2178, 0x2179;
+;
+
 programmer
   id    = "snap_updi";
   desc  = "MPLAB(R) SNAP in UPDI mode";
@@ -1282,6 +1298,22 @@ programmer
   usbpid = 0x217F, 0x2180, 0x2181;
 ;
 
+programmer
+  id    = "snap_pdi";
+  desc  = "MPLAB(R) SNAP in PDI mode";
+  type  = "jtagice3_pdi";
+  connection_type = usb;
+  usbpid = 0x217F, 0x2180, 0x2181;
+;
+
+programmer
+  id    = "snap_isp";
+  desc  = "MPLAB(R) SNAP in ISP mode";
+  type  = "jtagice3_isp";
+  connection_type = usb;
+  usbpid = 0x217F, 0x2180, 0x2181;
+;
+
 programmer
   id    = "pkobn_updi";
   desc  = "Curiosity nano (nEDBG) in UPDI mode";