diff --git a/arduino/ws2812_controller/ws2812.h b/arduino/ws2812_controller/ws2812.h
index b4a6eba..5dddc9f 100644
--- a/arduino/ws2812_controller/ws2812.h
+++ b/arduino/ws2812_controller/ws2812.h
@@ -8,6 +8,7 @@
 // Sometimes this can cause undesirable flickering.
 // 1 = Disable temporal dithering
 // 2, 6, 8 = Enable temporal dithering (larger values = more dithering)
+#define WS2812_DITHER_NUM (8)
 
 #define WS2812_USE_INTERRUPT (0) // not supported yet