diff --git a/machine/translation/huggingface/hugging_face_nmt_engine.py b/machine/translation/huggingface/hugging_face_nmt_engine.py
index 8191075..ad1418c 100644
--- a/machine/translation/huggingface/hugging_face_nmt_engine.py
+++ b/machine/translation/huggingface/hugging_face_nmt_engine.py
@@ -48,7 +48,8 @@ def __init__(
                 and src_lang not in additional_special_tokens
             ):
                 raise ValueError(
-                    f"'{src_lang}' is not a valid language code. This error can happen when there is no matching training data and the language code is not in the NLLB-200."
+                    f"'{src_lang}' is not a valid language code. This error can happen when "
+                    + "there is no matching training data and the language code is not in the NLLB-200."
                 )
 
             if (
@@ -57,7 +58,8 @@ def __init__(
                 and tgt_lang not in additional_special_tokens
             ):
                 raise ValueError(
-                    f"'{tgt_lang}' is not a valid language code. This error can happen when there is no matching training data and the language code is not in the NLLB-200."
+                    f"'{tgt_lang}' is not a valid language code. This error can happen when "
+                    + "there is no matching training data and the language code is not in the NLLB-200."
                 )
 
         self._pipeline = _TranslationPipeline(