diff --git a/main.py b/main.py
index 75b0149..fb12292 100644
--- a/main.py
+++ b/main.py
@@ -37,7 +37,7 @@ async def play_sound(filename):
         await asyncio.sleep(0.1)
 
 
-async def bark(sound):
+async def barkbark(sound):
     global COOLDOWN
     if time.time() - COOLDOWN < 5.0:
         logging.info('Cooldown skipping.')
@@ -65,17 +65,17 @@ async def process_mqtt(message):
         logging.info('Invalid json, returning')
         return
 
-    id_ = str(data.get('id', ''))
+    serial = str(data.get('serial', ''))
 
-    if id_ not in CAMERAS:
-        logging.info('Invalid id, returning')
+    if serial not in CAMERAS:
+        logging.info('Invalid serial, returning')
         return
 
-    camera = CAMERAS[id_]
+    camera = CAMERAS[serial]
 
-    logging.info('Ringing %s...', camera['name'])
+    logging.info('Barking %s...', camera['name'])
 
-    await ring_bell(doorbell['sound'])
+    await barkbark(camera['sound'])
 
 
 async def fetch_mqtt():