diff --git a/src/webserver.js b/src/webserver.js
index 6d69600733..ed33ff4316 100644
--- a/src/webserver.js
+++ b/src/webserver.js
@@ -215,7 +215,7 @@ module.exports.server = server;
 
 				app.use(express.csrf());
 
-				if (nconf.get('port') != 80 && nconf.get('port') != 443 && nconf.get('use_port') === true) {
+				if (nconf.get('port') != 80 && nconf.get('port') != 443 && nconf.get('use_port') === false) {
 					winston.info('Enabling \'trust proxy\'');
 					app.enable('trust proxy');
 				}