diff --git a/csync/src/csync_owncloud_util.c b/csync/src/csync_owncloud_util.c
index af64ff6fc2..5a5811fa64 100644
--- a/csync/src/csync_owncloud_util.c
+++ b/csync/src/csync_owncloud_util.c
@@ -339,6 +339,8 @@ void fill_webdav_properties_into_resource(struct resource* newres, const ne_prop
     file_id      = ne_propset_value( set, &ls_props[4] );
     directDownloadUrl = ne_propset_value( set, &ls_props[5] );
     directDownloadCookies = ne_propset_value( set, &ls_props[6] );
+
+    // permission flags: Defined in https://github.com/owncloud/core/issues/8322
     perm = ne_propset_value( set, &ls_props[7] );
 
     if( resourcetype && strncmp( resourcetype, "<DAV:collection>", 16 ) == 0) {