diff --git a/paramecio/citoplasma/i18n.py b/paramecio/citoplasma/i18n.py
index 6f4011b..a205934 100644
--- a/paramecio/citoplasma/i18n.py
+++ b/paramecio/citoplasma/i18n.py
@@ -81,7 +81,7 @@ class I18n:
     @staticmethod
     def get_browser_lang():
         
-        return request.headers.get('Accept-Language')
+        return request.headers.get('Accept-Language', 'en-US')
 
     @staticmethod
     def lang_json(module, symbol, text_default):