diff --git a/lib/cartodb/server_options.js b/lib/cartodb/server_options.js
index 6cf28c66..62b32aa6 100644
--- a/lib/cartodb/server_options.js
+++ b/lib/cartodb/server_options.js
@@ -23,7 +23,7 @@ module.exports = function(){
           datasource: global.environment.postgres,
           cachedir: global.environment.millstone.cache_basedir,
           mapnik_version: global.environment.mapnik_version || mapnik.versions.mapnik,
-          default_layergroup_ttl: 300 // seconds
+          default_layergroup_ttl: 7200 // seconds (defaultis 300)
         },
         mapnik: {
           metatile: rendererConfig.metatile,