diff --git a/src/pretix/base/middleware.py b/src/pretix/base/middleware.py
index 4c394d330a..aa0753a8aa 100644
--- a/src/pretix/base/middleware.py
+++ b/src/pretix/base/middleware.py
@@ -59,21 +59,25 @@ class LocaleMiddleware(MiddlewareMixin):
         # set and can be taken into account for the decision.
         if not request.path.startswith(get_script_prefix() + 'control'):
             if hasattr(request, 'event'):
-                if language not in request.event.settings.locales:
+                settings_holder = request.event
+            elif hasattr(request, 'organizer'):
+                settings_holder = request.organizer
+            else:
+                settings_holder = None
+
+            if settings_holder:
+                if language not in settings_holder.settings.locales:
                     firstpart = language.split('-')[0]
-                    if firstpart in request.event.settings.locales:
+                    if firstpart in settings_holder.settings.locales:
                         language = firstpart
                     else:
-                        language = request.event.settings.locale
-                        for lang in request.event.settings.locales:
+                        language = settings_holder.settings.locale
+                        for lang in settings_holder.settings.locales:
                             if lang.startswith(firstpart + '-'):
                                 language = lang
                                 break
-                if '-' not in language and request.event.settings.region:
-                    language += '-' + request.event.settings.region
-            elif hasattr(request, 'organizer'):
-                if '-' not in language and request.organizer.settings.region:
-                    language += '-' + request.organizer.settings.region
+                if '-' not in language and settings_holder.settings.region:
+                    language += '-' + settings_holder.settings.region
         else:
             gs = global_settings_object(request)
             if '-' not in language and gs.settings.region: