diff --git a/roles/wsgi_website/templates/nginx_site.j2 b/roles/wsgi_website/templates/nginx_site.j2
index b9e49761c5a2f1a79570df7be8db9bf6b7292e47..5b31634bf46d3a4bb8c255aeec078fa0a1669161 100644
--- a/roles/wsgi_website/templates/nginx_site.j2
+++ b/roles/wsgi_website/templates/nginx_site.j2
@@ -50,8 +50,8 @@ server {
         proxy_set_header Host $http_host;
         proxy_redirect off;
 
-    {% for header, value in proxy_headers | dictsort -%}
-    proxy_set_header {{ header }} {{ value }};
+    {% for header, value in http_header_overrides | dictsort -%}
+    proxy_set_header {{ header }} "{{ value }}";
     {% endfor -%}
 
         proxy_pass http://unix:/run/wsgi/{{ fqdn }}.sock;