diff --git a/gaugemqttcontinuous.py b/gaugemqttcontinuous.py
index 58d2513..bb86773 100644
--- a/gaugemqttcontinuous.py
+++ b/gaugemqttcontinuous.py
@@ -342,7 +342,7 @@ _bl_dirty_since = None
 _BL_SAVE_DELAY_MS = 5000
 
 _disco_saved_brightness = [100] * num_gauges
-_disco_saved_color = [(0, 0, 0)] * num_gauges
+_disco_saved_color = [[0, 0, 0] for _ in range(num_gauges)]
 
 
 def _flush_backlight(client):