--- a/psgxs.js
+++ b/psgxs.js
@@ -19,6 +19,8 @@
  *  along with PSĜS.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+'use strict';
+
 var xmpp = require('xmpp');
 var sha1 = require('sha1');
 require('./iso8601');
@@ -45,13 +47,13 @@ conn.log = function (_, m) { console.log
 function _(obj, color) {
 	var str = require('sys').inspect(obj, false, null);
 	if (color)
-		console.log('\033['+c+';1m' + str + '\033[0m');
+		console.log('\x1b['+c+';1m' + str + '\x1b[0m');
 	else
 		console.log(str);
 };
 
 process.addListener('uncaughtException', function (err) {
-	console.log('\033[41;1mUncaught exception (' + err + '), this should never happen:\033[0m\n' + err.stack);
+	console.log('\x1b[41;1mUncaught exception (' + err + '), this should never happen:\x1b[0m\n' + err.stack);
 });
 
 if (typeof xmpp.StanzaBuilder.cnode != 'function' || typeof xmpp.StanzaBuilder.prototype.cnode != 'function') {