diff --git a/.docker/web-nginx/Dockerfile b/.docker/web-nginx/Dockerfile
index 7b1af4e84..012f476f0 100644
--- a/.docker/web-nginx/Dockerfile
+++ b/.docker/web-nginx/Dockerfile
@@ -8,6 +8,7 @@ COPY .docker/web-nginx/nginx.conf /etc/nginx/templates/nginx.conf.template
 # By default, nginx will send the php requests to "app" server, but this server
 # name can be overridden at runtime by passing an APP_UPSTREAM env var
 ENV APP_UPSTREAM=${APP_UPSTREAM:-app}
+ENV APP_FASTCGI_PASS="${APP_FASTCGI_PASS:-\$backend}"
 
 # Webroot (defaults to /var/www/html)
 ENV APP_WEB_ROOT=${APP_WEB_ROOT:-/var/www/html}
diff --git a/.docker/web-nginx/nginx.conf b/.docker/web-nginx/nginx.conf
index 94511eeb9..9dbf5d1b1 100644
--- a/.docker/web-nginx/nginx.conf
+++ b/.docker/web-nginx/nginx.conf
@@ -47,7 +47,7 @@ http {
 
 			set $backend "${APP_UPSTREAM}:9000";
 
-			fastcgi_pass $backend;
+			fastcgi_pass ${APP_FASTCGI_PASS};
 		}
 
 		# Allow PATH_INFO for PHP files in plugins.local directories with an /api/ sub directory to allow plugins to leverage when desired
@@ -68,9 +68,9 @@ http {
 
 			set $backend "${APP_UPSTREAM}:9000";
 
-			fastcgi_pass $backend;
+			fastcgi_pass ${APP_FASTCGI_PASS};
 		}
-		
+
 		location / {
 			try_files $uri $uri/ =404;
 		}