diff --git a/ml/thing.py b/ml/thing.py
index 4094af341eb47595c37f874b1bba4daa4cc55b79..8f971998353b3a4b754aa175d9cae84439b02bfb 100644
--- a/ml/thing.py
+++ b/ml/thing.py
@@ -450,6 +450,7 @@ def __on_broker_callback(self, ch, method, properties, body):
         elif isinstance(body, str):
             return
 
+        ch.basic_ack(method.delivery_tag)
         message_type = body.get("messageType")
         if message_type == "userMessage":
             self.on_user_message(body)