diff --git a/rasa_nlu_examples/extractors/flashtext_entity_extractor.py b/rasa_nlu_examples/extractors/flashtext_entity_extractor.py
index 98634fc..ced2e53 100644
--- a/rasa_nlu_examples/extractors/flashtext_entity_extractor.py
+++ b/rasa_nlu_examples/extractors/flashtext_entity_extractor.py
@@ -64,7 +64,9 @@ def __init__(
         )
         for non_word_boundary in config["non_word_boundaries"]:
             self.keyword_processor.add_non_word_boundary(non_word_boundary)
-        words = pathlib.Path(self.path).read_text(encoding=config["encoding"]).split("\n")
+        words = (
+            pathlib.Path(self.path).read_text(encoding=config["encoding"]).split("\n")
+        )
         if len(words) == 0:
             rasa.shared.utils.io.raise_warning(
                 f"No words found in the {pathlib.Path(self.path)} file."