diff --git a/client/src/lib/hooks/useConnection.ts b/client/src/lib/hooks/useConnection.ts
index 98ae0447..34388b8e 100644
--- a/client/src/lib/hooks/useConnection.ts
+++ b/client/src/lib/hooks/useConnection.ts
@@ -280,7 +280,6 @@ export function useConnection({
       return;
     }
     let mcpProxyServerUrl;
-    const originalUrl = new URL(sseUrl);
     
     switch (transportType) {
       case "stdio":
@@ -292,12 +291,12 @@ export function useConnection({
 
       case "sse":
         mcpProxyServerUrl = new URL(`${getMCPProxyAddress(config)}/sse`);
-        mcpProxyServerUrl.searchParams.append("url", originalUrl.toString());
+        mcpProxyServerUrl.searchParams.append("url", sseUrl);
         break;
 
       case "streamable-http":
         mcpProxyServerUrl = new URL(`${getMCPProxyAddress(config)}/mcp`);
-        mcpProxyServerUrl.searchParams.append("url", originalUrl.toString());
+        mcpProxyServerUrl.searchParams.append("url", sseUrl);
         break;
     }
     (mcpProxyServerUrl as URL).searchParams.append(