diff --git a/templates/etc/nginx/sites-available/vhost.j2 b/templates/etc/nginx/sites-available/vhost.j2
index 0089a57..b61ad27 100644
--- a/templates/etc/nginx/sites-available/vhost.j2
+++ b/templates/etc/nginx/sites-available/vhost.j2
@@ -43,10 +43,12 @@ server {
             {% if location.proxy_http_version is defined and location.proxy_http_version %}
             proxy_http_version {{ location.proxy_http_version }};
             {% endif %}
-            {% for pheader in location.proxy_headers | default([]) %}
+            {% if location.proxy_headers is defined and location.proxy_headers %}
 
+            {% for pheader in location.proxy_headers %}
             proxy_set_header {{ pheader }};
             {% endfor %}
+            {% endif %}
         {% endif %}
     }