diff -Nuar "$1" "$2" 
--- ubiquity.orig/ubiquity/frontend/base.py	2016-05-11 14:58:57.611808386 +0200
+++ ubiquity/ubiquity/frontend/base.py	2016-05-12 08:54:40.573433798 +0200
@@ -101,7 +101,7 @@
         self.dbfilter_status = None
         self.resize_choice = None
         self.manual_choice = None
-        self.locale = None
+        self.locale = os.environ['LANG']
         self.wget_retcode = None
         self.wget_proc = None