diff --git a/credsweeper/ml_model/ml_validator.py b/credsweeper/ml_model/ml_validator.py
index 5313ecde8..97011a6e5 100644
--- a/credsweeper/ml_model/ml_validator.py
+++ b/credsweeper/ml_model/ml_validator.py
@@ -27,7 +27,7 @@ def __init__(
             threshold: Union[float, ThresholdPreset],  #
             ml_config: Union[None, str, Path] = None,  #
             ml_model: Union[None, str, Path] = None,  #
-            ml_providers: Optional[str]=None) -> None:
+            ml_providers: Optional[str] = None) -> None:
         """Init
 
         Args: