diff --git a/doc/examples/websocket.c b/doc/examples/websocket.c
index 018d4c5a..ea29af62 100644
--- a/doc/examples/websocket.c
+++ b/doc/examples/websocket.c
@@ -382,9 +382,6 @@ access_handler (void *cls,
       /* upgrade the connection */
       response = MHD_create_response_for_upgrade (&upgrade_handler,
                                                   NULL);
-      MHD_add_response_header (response,
-                               MHD_HTTP_HEADER_CONNECTION,
-                               "Upgrade");
       MHD_add_response_header (response,
                                MHD_HTTP_HEADER_UPGRADE,
                                "websocket");
diff --git a/src/microhttpd_ws/test_websocket_browser.c b/src/microhttpd_ws/test_websocket_browser.c
index 557ccdde..d7416a59 100644
--- a/src/microhttpd_ws/test_websocket_browser.c
+++ b/src/microhttpd_ws/test_websocket_browser.c
@@ -494,9 +494,6 @@ access_handler (void *cls,
       /* upgrade the connection */
       response = MHD_create_response_for_upgrade (&upgrade_handler,
                                                   NULL);
-      MHD_add_response_header (response,
-                               MHD_HTTP_HEADER_CONNECTION,
-                               "Upgrade");
       MHD_add_response_header (response,
                                MHD_HTTP_HEADER_UPGRADE,
                                "websocket");