diff --git a/ct/tandoor.sh b/ct/tandoor.sh
index 4a1ce1739..451ed639e 100644
--- a/ct/tandoor.sh
+++ b/ct/tandoor.sh
@@ -33,6 +33,10 @@ function update_script() {
     exit
   fi
 
+  if ! grep -q "^ALLOWED_HOSTS=" /opt/tandoor/.env; then
+    echo "ALLOWED_HOSTS=${LOCAL_IP}" >>/opt/tandoor/.env
+  fi
+
   if check_for_gh_release "tandoor" "TandoorRecipes/recipes"; then
     msg_info "Stopping Service"
     systemctl stop tandoor
diff --git a/install/tandoor-install.sh b/install/tandoor-install.sh
index c8f572297..b010a735e 100644
--- a/install/tandoor-install.sh
+++ b/install/tandoor-install.sh
@@ -47,6 +47,7 @@ $STD yarn install
 $STD yarn build
 cat <<EOF >/opt/tandoor/.env
 SECRET_KEY=$SECRET_KEY
+ALLOWED_HOSTS=$LOCAL_IP
 TZ=Europe/Berlin
 
 DB_ENGINE=django.db.backends.postgresql