diff --git a/src/devices/colordistancesensor.ts b/src/devices/colordistancesensor.ts
index 9dc40fc..a097f1e 100644
--- a/src/devices/colordistancesensor.ts
+++ b/src/devices/colordistancesensor.ts
@@ -143,7 +143,7 @@ export class ColorDistanceSensor extends Device {
             address = 1;
         }
         const message = Buffer.alloc(2);
-        // Send "Combo PWD mode"
+        // Send "Combo PWM mode"
         message[0] = (((channel - 1) + 4 + (address << 3)) << 4) + this._pfPowerToPWM(powerA);
         message[1] = this._pfPowerToPWM(powerB) << 4;
         return this.sendPFIRMessage(message);