1 files changed, 2 insertions, 2 deletions

diff --git a/Mailman/Cgi/options.py b/Mailman/Cgi/options.py
index e7e7264a1..faa813489 100644
--- a/Mailman/Cgi/options.py
+++ b/Mailman/Cgi/options.py
@@ -88,7 +88,7 @@ def main():
     # preference to view the page in, so we should honor that here.  If that's
     # not available, use the list's default language.
     language = cgidata.getvalue('language')
-    if not Utils.IsLanguage(language):
+    if language not in config.languages.enabled_codes:
         language = mlist.preferred_language
     i18n.set_language(language)
     doc.set_language(language)
@@ -138,7 +138,7 @@ def main():
     # user's stored preferred language, overridden by any form settings for
     # their new language preference.
     userlang = cgidata.getvalue('language')
-    if not Utils.IsLanguage(userlang):
+    if userlang not in config.languages.enabled_codes:
         userlang = mlist.getMemberLanguage(user)
     doc.set_language(userlang)
     i18n.set_language(userlang)