diff --git a/ports/samd/boards/MINISAM_M4/pins.csv b/ports/samd/boards/MINISAM_M4/pins.csv
index f676c290a0..793e523fcd 100644
--- a/ports/samd/boards/MINISAM_M4/pins.csv
+++ b/ports/samd/boards/MINISAM_M4/pins.csv
@@ -3,18 +3,19 @@
 # If the pin name is omitted, the pin number is added as name.
 # Empty lines and lines not starting with PIN_ are ignored
 
-PIN_PA02,A0_D9
-PIN_PB08,A1_D10
-PIN_PB09,A2_D11
-PIN_PA04,A3_D12
-PIN_PA05,A4_D13
+PIN_PA02,A0
+PIN_PB08,A1
+PIN_PB09,A2
+PIN_PA04,A3
+PIN_PA05,A4
 PIN_PA06,A5
-PIN_PA16,D0
-PIN_PA17,D1
-PIN_PA07,A6_D2
+PIN_PA07,A6
+PIN_PA16,RX
+PIN_PA17,TX
 PIN_PA19,D3
 PIN_PA20,D4
 PIN_PA21,D5
+PIN_PA15,LED
 PIN_PA00,BUTTON
 PIN_PA03,AREF
 PIN_PA12,SDA
@@ -25,8 +26,6 @@ PIN_PA01,SCK
 PIN_PB03,DOTSTAR_DATA
 PIN_PB02,DOTSTAR_CLK
 
-PIN_PA15,LED
-
 PIN_PA24,USB_DM
 PIN_PA25,USB_DP
 PIN_PA26,USB_SOF