diff --git a/README.md b/README.md
index dc9aa89..971aaaa 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 This is a CDC/DFU/UF2 bootloader for nRF52 boards.
 
 - [Adafruit Feather nRF52832](https://www.adafruit.com/product/3406)
-- Adafruit Feather nRF52840 Express
+- [Adafruit Feather nRF52840 Express](https://www.adafruit.com/product/4062)
 - Nordic nRF52840DK PCA10056
 - Nordic nRF52840DK PCA10059 ("Dongle")
 - Particle Argon
diff --git a/src/boards.c b/src/boards.c
index 72fa883..0aaee71 100644
--- a/src/boards.c
+++ b/src/boards.c
@@ -291,7 +291,7 @@ void led_state(uint32_t state)
     #endif
 }
 
-#if LED_NEOPIXEL
+#ifdef LED_NEOPIXEL
 
 // WS2812B (rev B) timing is 0.4 and 0.8 us
 #define MAGIC_T0H               6UL | (0x8000) // 0.375us