diff --git a/gramps/gen/datehandler/_datehandler.py b/gramps/gen/datehandler/_datehandler.py
index d6ccb257d..558251e14 100644
--- a/gramps/gen/datehandler/_datehandler.py
+++ b/gramps/gen/datehandler/_datehandler.py
@@ -85,8 +85,6 @@ LANG_TO_DISPLAY = {
     'English_United States' : DateDisplayEn,
     'ko_KR'                 : DateDisplay,
     'nb_NO'                 : DateDisplay,
-    'is'                    : DateDisplay,
-    'is_IS'                 : DateDisplay,
     }
 
 def register_datehandler(locales,parse_class,display_class):