diff --git a/ports/atmel-samd/common-hal/microcontroller/Pin.h b/ports/atmel-samd/common-hal/microcontroller/Pin.h
index 090d7a512a..14887207aa 100644
--- a/ports/atmel-samd/common-hal/microcontroller/Pin.h
+++ b/ports/atmel-samd/common-hal/microcontroller/Pin.h
@@ -31,6 +31,9 @@
 
 #include "peripherals/samd/pins.h"
 
+#ifdef MICROPY_HW_NEOPIXEL
+extern bool neopixel_in_use;
+#endif
 #ifdef MICROPY_HW_APA102_MOSI
 extern bool apa102_sck_in_use;
 extern bool apa102_mosi_in_use;
diff --git a/ports/nrf/common-hal/microcontroller/Pin.h b/ports/nrf/common-hal/microcontroller/Pin.h
index 5a1fd39616..735ed90cca 100644
--- a/ports/nrf/common-hal/microcontroller/Pin.h
+++ b/ports/nrf/common-hal/microcontroller/Pin.h
@@ -31,6 +31,9 @@
 
 #include "peripherals/nrf/pins.h"
 
+#ifdef MICROPY_HW_NEOPIXEL
+extern bool neopixel_in_use;
+#endif
 #ifdef MICROPY_HW_APA102_MOSI
 extern bool apa102_sck_in_use;
 extern bool apa102_mosi_in_use;
diff --git a/shared-bindings/microcontroller/Pin.h b/shared-bindings/microcontroller/Pin.h
index 8762e44127..2d15dd5c58 100644
--- a/shared-bindings/microcontroller/Pin.h
+++ b/shared-bindings/microcontroller/Pin.h
@@ -30,10 +30,6 @@
 #include "common-hal/microcontroller/Pin.h"
 #include "py/obj.h"
 
-#ifdef MICROPY_HW_NEOPIXEL
-extern bool neopixel_in_use;
-#endif
-
 // Type object used in Python. Should be shared between ports.
 extern const mp_obj_type_t mcu_pin_type;