diff --git a/apps/calendar/appinfo/remote.php b/apps/calendar/appinfo/remote.php
index 3bd8737ee97..93d57b2e40c 100644
--- a/apps/calendar/appinfo/remote.php
+++ b/apps/calendar/appinfo/remote.php
@@ -21,10 +21,14 @@ $principalBackend = new OC_Connector_Sabre_Principal();
 $caldavBackend    = new OC_Connector_Sabre_CalDAV();
 
 // Root nodes
-$nodes = array(
-	new Sabre_CalDAV_Principal_Collection($principalBackend),
+$collection = new Sabre_CalDAV_Principal_Collection($principalBackend); 
+$collection->disableListing = true; // Disable listening
+
+$nodes = array( 
+	$collection, 
 	new Sabre_CalDAV_CalendarRootNode($principalBackend, $caldavBackend),
-);
+	);
+
 
 // Fire up server
 $server = new Sabre_DAV_Server($nodes);
diff --git a/apps/contacts/appinfo/remote.php b/apps/contacts/appinfo/remote.php
index ef50e4ad39f..2a6a3bea2e1 100644
--- a/apps/contacts/appinfo/remote.php
+++ b/apps/contacts/appinfo/remote.php
@@ -36,10 +36,13 @@ $principalBackend = new OC_Connector_Sabre_Principal();
 $carddavBackend   = new OC_Connector_Sabre_CardDAV();
 
 // Root nodes
-$nodes = array(
-	new Sabre_CalDAV_Principal_Collection($principalBackend),
+$collection = new Sabre_CalDAV_Principal_Collection($principalBackend); 
+$collection->disableListing = true; // Disable listening
+
+$nodes = array( 
+	$collection, 
 	new Sabre_CardDAV_AddressBookRoot($principalBackend, $carddavBackend),
-);
+	);
 
 // Fire up server
 $server = new Sabre_DAV_Server($nodes);