diff --git a/INSTALL.varnish b/INSTALL.varnish
index 2268036..ffcdeab 100644
--- a/INSTALL.varnish
+++ b/INSTALL.varnish
@@ -45,6 +45,10 @@ Install the RPAF apache module (or skip this step if not using apache):
 On manual installations, change "/etc/noosfero/*" to
 "{Rails.root}/etc/noosfero/*"
 
+NOTE: it is very important that the *.vcl files are included in that order,
+i.e. *first* include "varnish-noosfero.vcl", and *after*
+"noosfero-accept-language.cvl".
+
 4c) Restart Varnish
 
   # invoke-rc.d varnish restart
--
libgit2 0.21.2