diff --git a/lib/request/connect.py b/lib/request/connect.py
index 2bb69e338..4ddaa02cf 100644
--- a/lib/request/connect.py
+++ b/lib/request/connect.py
@@ -223,7 +223,7 @@ class Connect:
             if kb.proxyAuthHeader:
                 headers[HTTPHEADER.PROXY_AUTHORIZATION] = kb.proxyAuthHeader
 
-            headers[HTTPHEADER.HOST] = urlparse.urlparse(url).netloc.split(':')[0]
+            headers[HTTPHEADER.HOST] = urlparse.urlparse(url).netloc
 
             if auxHeaders:
                 for key, item in auxHeaders.items():