diff --git a/lib/cartodb/models/mapconfig/named_map_provider.js b/lib/cartodb/models/mapconfig/named_map_provider.js
index f84e5bbf..aa87613c 100644
--- a/lib/cartodb/models/mapconfig/named_map_provider.js
+++ b/lib/cartodb/models/mapconfig/named_map_provider.js
@@ -206,7 +206,7 @@ NamedMapMapConfigProvider.prototype.getAffectedTablesAndLastUpdatedTime = functi
     var self = this;
 
     if (this.affectedTablesAndLastUpdate !== null) {
-        return this.affectedTablesAndLastUpdate;
+        return callback(null, this.affectedTablesAndLastUpdate);
     }
 
     step(