diff --git a/source/_addons/nginx_proxy.markdown b/source/_addons/nginx_proxy.markdown
index 7f14e50bee6..318b9768d9c 100644
--- a/source/_addons/nginx_proxy.markdown
+++ b/source/_addons/nginx_proxy.markdown
@@ -9,7 +9,9 @@ sharing: true
 footer: true
 ---
 
-Setup a SSL proxy with NGINX and redirect port 80 to 443. Make sure you have generate certificate before you start this add-on.
+Setup a SSL proxy with NGINX and redirect port 80 to 443. Make sure you have generated a certificate before you start this add-on. 
+
+In the `http` section of the `configuration.yaml` file remove `ssl_certificate` and `ssl_key` and don't enter the port in the `base_url` to avoid a HTTP 502 error.
 
 
 ```json