diff --git a/clever/www/js/gcs.js b/clever/www/js/gcs.js
index d31cf2a0..ca65ba66 100644
--- a/clever/www/js/gcs.js
+++ b/clever/www/js/gcs.js
@@ -3,7 +3,7 @@ var titleEl = document.querySelector('title');
 var modeEl = document.querySelector('.mode');
 var batteryEl = document.querySelector('.battery');
 
-var url = 'ws://' + location.host + ':9090';
+var url = 'ws://' + location.hostname + ':9090';
 var ros = new ROSLIB.Ros({ url: url });
 
 function speak(txt) {
diff --git a/clever/www/js/viz.js b/clever/www/js/viz.js
index 26a75655..d1444c74 100644
--- a/clever/www/js/viz.js
+++ b/clever/www/js/viz.js
@@ -1,5 +1,5 @@
 var ros = new ROSLIB.Ros({
-	url : 'ws://' + location.host + ':9090'
+	url : 'ws://' + location.hostname + ':9090'
 });
 
 var titleEl = document.querySelector('title');