diff --git a/chat-signaling-server/templates/index.html b/chat-signaling-server/templates/index.html
index b9a4b0c..20ff16a 100644
--- a/chat-signaling-server/templates/index.html
+++ b/chat-signaling-server/templates/index.html
@@ -87,7 +87,7 @@
         }
 
         let protocol = "ws://";
-        if (location.protocol === "https") {
+        if (location.protocol === "https:") {
             protocol = "wss://"
         }