diff --git a/apache/apache.patch.wstunnel b/apache/apache.patch.wstunnel
index e544a02e94..9de44198f1 100644
--- a/apache/apache.patch.wstunnel
+++ b/apache/apache.patch.wstunnel
@@ -1,3 +1,7 @@
+http://blog.cafarelli.fr/2013/04/backporting-apache-support-for-websockets-reverse-proxy-aka-getting-gateone-to-work-behind-apache/
+https://cafarelli.fr/gentoo/apache-2.2.31-wstunnel.patch
+https://bz.apache.org/bugzilla/show_bug.cgi?id=58503
+
 Index: modules/proxy/config.m4
 --- modules/proxy/config.m4.orig	2009-09-24 00:20:00.000000000 +0200
 +++ modules/proxy/config.m4	2016-04-30 14:54:41.903080391 +0200