diff --git a/src/sensor.cpp b/src/sensor.cpp
index baebf9d1..3b5f9e2d 100644
--- a/src/sensor.cpp
+++ b/src/sensor.cpp
@@ -54,9 +54,10 @@ uint8_t *sensor_read(uint8_t sensor) {
 
   case 1:
 
-    // insert user specific sensor data frames here */
+    // insert user specific sensor data frames here
+    // note: Sensor1 fields are used for ENS count, if ENS detection enabled
 #if (COUNT_ENS)
-    payload.addCount( cwa_report(), MAC_SNIFF_BLE_CWA);
+    payload.addCount(cwa_report(), MAC_SNIFF_BLE_CWA);
 #else
     buf[0] = length;
     buf[1] = 0x01;