diff --git a/micropython/bluetooth/aioble/examples/temp_sensor.py b/micropython/bluetooth/aioble/examples/temp_sensor.py
index 54580f595..a6657ad63 100644
--- a/micropython/bluetooth/aioble/examples/temp_sensor.py
+++ b/micropython/bluetooth/aioble/examples/temp_sensor.py
@@ -20,7 +20,7 @@
 _ADV_APPEARANCE_GENERIC_THERMOMETER = const(768)
 
 # How frequently to send advertising beacons.
-_ADV_INTERVAL_MS = 250_000
+_ADV_INTERVAL_US = 250_000
 
 
 # Register GATT server.