diff --git a/task-sdk/src/airflow/sdk/execution_time/supervisor.py b/task-sdk/src/airflow/sdk/execution_time/supervisor.py
index 176366fbda19e..206bf3b687802 100644
--- a/task-sdk/src/airflow/sdk/execution_time/supervisor.py
+++ b/task-sdk/src/airflow/sdk/execution_time/supervisor.py
@@ -1800,10 +1800,10 @@ def process_log_messages_from_subprocess(
             # TODO: convert the dict back to a pretty stack trace
             event["error_detail"] = exc
 
-        level = NAME_TO_LEVEL[event.pop("level")]
-        msg = event.pop("event", None)
-        for target in loggers:
-            target.log(level, msg, **event)
+        if level := NAME_TO_LEVEL.get(event.pop("level")):
+            msg = event.pop("event", None)
+            for target in loggers:
+                target.log(level, msg, **event)
 
 
 def forward_to_log(