diff --git a/jupyter_server/services/events/handlers.py b/jupyter_server/services/events/handlers.py
index de0e70fad..ba30da1fb 100644
--- a/jupyter_server/services/events/handlers.py
+++ b/jupyter_server/services/events/handlers.py
@@ -82,6 +82,9 @@ def validate_model(
             message = f"Missing `{key}` in the JSON request body."
             raise Exception(message)
     schema_id = cast(str, data.get("schema_id"))
+    # The case where a given schema_id isn't found, 
+    # jupyter_events raises a useful error, so there's no need to
+    # handle that case here.
     schema = registry.get(schema_id)
     version = int(cast(int, data.get("version")))
     if schema.version != version: