diff --git a/ports/stm/boards/feather_stm32f405_express/mpconfigboard.mk b/ports/stm/boards/feather_stm32f405_express/mpconfigboard.mk
index 0866223841..4d0bd4598d 100644
--- a/ports/stm/boards/feather_stm32f405_express/mpconfigboard.mk
+++ b/ports/stm/boards/feather_stm32f405_express/mpconfigboard.mk
@@ -16,5 +16,3 @@ LD_DEFAULT = boards/STM32F405_default.ld
 # UF2 boot option
 LD_BOOT = boards/STM32F405_boot.ld
 UF2_OFFSET = 0x8010000
-
-CIRCUITPY_CANIO = 1
diff --git a/ports/stm/mpconfigport.mk b/ports/stm/mpconfigport.mk
index b827aa48b9..bcecaa5170 100644
--- a/ports/stm/mpconfigport.mk
+++ b/ports/stm/mpconfigport.mk
@@ -4,6 +4,7 @@ INTERNAL_LIBM ?= 1
 USB_SERIAL_NUMBER_LENGTH ?= 24
 
 ifeq ($(MCU_VARIANT),STM32F405xx)
+	CIRCUITPY_CANIO = 1
 	CIRCUITPY_FRAMEBUFFERIO ?= 1
 	CIRCUITPY_RGBMATRIX ?= 1
 	CIRCUITPY_SDIOIO ?= 1