diff --git a/isogeo_pysdk/translator.py b/isogeo_pysdk/translator.py
index 0db37a95..5f28320d 100644
--- a/isogeo_pysdk/translator.py
+++ b/isogeo_pysdk/translator.py
@@ -206,7 +206,7 @@ def __init__(self, lang="FR"):
 
         :param str lang: language code to apply. EN or FR.
         """
-        if lang == "FR":
+        if lang.upper() == "FR":
             self.translations = dict_md_fields_fr
         else:
             self.translations = dict_md_fields_en