diff --git a/manifests/apache.pp b/manifests/apache.pp
index 9ff3b35..cc2dc45 100644
--- a/manifests/apache.pp
+++ b/manifests/apache.pp
@@ -58,6 +58,10 @@ class etherpad_lite::apache (
       notify  => Service['httpd'],
       require => File['/etc/apache2/conf-available/connection-tuning'],
     }
+
+    httpd_mod { 'proxy_wstunnel':
+      ensure => present,
+    }
   }
 
   file { $docroot:
diff --git a/templates/etherpadlite.vhost.erb b/templates/etherpadlite.vhost.erb
index fb92b3a..754a4ec 100644
--- a/templates/etherpadlite.vhost.erb
+++ b/templates/etherpadlite.vhost.erb
@@ -74,8 +74,8 @@
           RewriteCond %{REQUEST_URI}  ^/socket.io            [NC]
           RewriteCond %{QUERY_STRING} transport=websocket    [NC]
           RewriteRule /(.*)           ws://localhost:9001/$1 [P,L]
-          ProxyPass        /socket.io http://localhost:9001 retry=0
-          ProxyPassReverse /socket.io http://localhost:9001
+          ProxyPass        /socket.io http://localhost:9001/socket.io retry=0
+          ProxyPassReverse /socket.io http://localhost:9001/socket.io
       </IfModule>
 
       ProxyPass  / http://localhost:9001/ retry=0