diff --git a/ampel-firmware/co2_sensor.cpp b/ampel-firmware/co2_sensor.cpp
index 48761a4307087c60a44f904cbde6ef0ab6994ccb..bdd44abac89e03e62fea358c3375be099a622298 100644
--- a/ampel-firmware/co2_sensor.cpp
+++ b/ampel-firmware/co2_sensor.cpp
@@ -86,7 +86,6 @@ namespace sensor {
       stable_measurements++;
       Serial.print(F("Number of stable measurements : "));
       Serial.println(stable_measurements);
-      //NOTE: Hue could change from blue or red to green over 60 measurements.
       waiting_color = color::green;
     } else {
       stable_measurements = 0;