diff --git a/backend/internal/nginx.js b/backend/internal/nginx.js
index 40d8fd86..a8310398 100644
--- a/backend/internal/nginx.js
+++ b/backend/internal/nginx.js
@@ -236,9 +236,9 @@ const internalNginx = {
 			
 			if ( nice_host_type === 'proxy_host' ) {			
 			    let listen_ports = [];
-				host.domain_names.map(function (domain_name) {
-					if ( domain_name.indexOf(":") > 0 ){
-						listen_ports.push(parseInt(domain_name.substring(domain_name.indexOf(":")+1)));
+				host.domain_names.map( function (domain_name) {
+					if ( domain_name.indexOf(':') > 0 ){
+						listen_ports.push(parseInt(domain_name.substring(domain_name.indexOf(':')+1)));
 					}
 				});
 				if ( listen_ports.length > 0 ){