diff --git a/ipv6work/settings.py b/ipv6work/settings.py
index f3376ce..b5fce0d 100644
--- a/ipv6work/settings.py
+++ b/ipv6work/settings.py
@@ -29,6 +29,7 @@ SECRET_KEY = '+0t^onasc-b+_ry$!6@hpf4o79rw6m%q7dow5#ia+@nla&2@0-'
 DEBUG = config('DEBUG', cast=bool, default=False)
 
 ALLOWED_HOSTS = config('ALLOWED_HOSTS', cast=Csv(), default="*")
+CSRF_TRUSTED_ORIGINS = ['.ungleich.ch']
 
 # Application definition