diff --git a/Arduino/LEDstream_FastLED/LEDstream_FastLED.ino b/Arduino/LEDstream_FastLED/LEDstream_FastLED.ino
index d41f606..f189276 100644
--- a/Arduino/LEDstream_FastLED/LEDstream_FastLED.ino
+++ b/Arduino/LEDstream_FastLED/LEDstream_FastLED.ino
@@ -40,7 +40,7 @@ static const uint16_t
 
 // --- Optional Settings (uncomment to add)
 //#define CLEAR_ON_START     // LEDs are cleared on reset
-//#define SERIAL_FLUSH       // Serial buffer cleared on LED latch
+#define SERIAL_FLUSH         // Serial buffer cleared on LED latch
 //#define GROUND_PIN 10      // additional grounding pin (optional)
 //#define CALIBRATE          // sets all LEDs to the color of the first