diff --git a/llmfoundry/utils/exceptions.py b/llmfoundry/utils/exceptions.py
index ac068f87d4..e7fe0dd6ea 100644
--- a/llmfoundry/utils/exceptions.py
+++ b/llmfoundry/utils/exceptions.py
@@ -172,13 +172,13 @@ def __init__(self, example_keys: str) -> None:
 
         super().__init__(message, example_keys=example_keys)
 
+
 class ExampleDatasetKeyCaseError(UserError):
     """Error thrown when keys in a dataset example are not in lowercase.
 
     This error checks for keys that could potentially match the expected example types if corrected.
     """
 
-
     def __init__(self, example_keys: str) -> None:
         message = (
             f"Found keys {example_keys} in the dataset. All keys in datasets must be in lowercase. "
@@ -186,6 +186,7 @@ def __init__(self, example_keys: str) -> None:
         )
         super().__init__(message, example_keys=example_keys)
 
+
 class NotEnoughChatDataError(UserError):
     """Error thrown when there is not enough chat data to train a model."""