diff --git a/docs/admin/vcs-server.rst b/docs/admin/vcs-server.rst
--- a/docs/admin/vcs-server.rst
+++ b/docs/admin/vcs-server.rst
@@ -327,6 +327,8 @@ Once installed you need to enable ``dav_
 .. code-block:: bash
 
     $ sudo a2enmod dav_svn
+    $ sudo a2enmod headers
+
 
 Configuring Apache Setup
 ========================
diff --git a/rhodecode/svn_support/templates/mod-dav-svn.conf.mako b/rhodecode/svn_support/templates/mod-dav-svn.conf.mako
--- a/rhodecode/svn_support/templates/mod-dav-svn.conf.mako
+++ b/rhodecode/svn_support/templates/mod-dav-svn.conf.mako
@@ -36,6 +36,9 @@
 # After changing this a stop and start of Apache is required (using restart
 # doesn't work).
 
+# fix https -> http downgrade with DAV. It requires an header downgrade for
+# https -> http reverse proxy to work properly
+RequestHeader edit Destination ^https: http: early
 
 <Location "${location_root|n}">
     # The mod_dav_svn module takes the username from the apache request object.