diff --git a/micropython/bluetooth/aioble/README.md b/micropython/bluetooth/aioble/README.md
index 1c2fc7ae5..5d4208c0d 100644
--- a/micropython/bluetooth/aioble/README.md
+++ b/micropython/bluetooth/aioble/README.md
@@ -118,7 +118,7 @@ temp_char = await temp_service.characteristic(_ENV_SENSE_TEMP_UUID)
 
 data = await temp_char.read(timeout_ms=1000)
 
-temp_char.subscribe(notify=True)
+await temp_char.subscribe(notify=True)
 while True:
     data = await temp_char.notified()
 ```