diff --git a/client/MhdMapClient.js b/client/MhdMapClient.js
index 20d21e1..c856f35 100644
--- a/client/MhdMapClient.js
+++ b/client/MhdMapClient.js
@@ -44,7 +44,7 @@ export default class MhdMapClient {
         this.startMap();
 
         const loc = document.location;
-        this.wsUrl = 'ws' + (loc.protocol === 'https:' ? 's' : '')+ '://' + loc.host + loc.pathname + '/ws';
+        this.wsUrl = 'ws' + (loc.protocol === 'https:' ? 's' : '')+ '://' + loc.host + loc.pathname.replace(/\/$/, "") + '/ws';
 
         await this.connectWs();
         setInterval(() => {