diff --git a/lib/mbtiles.js b/lib/mbtiles.js
index 7bfe54c..ab8c842 100644
--- a/lib/mbtiles.js
+++ b/lib/mbtiles.js
@@ -617,7 +617,7 @@ MBTiles.prototype.putInfo = function(data, callback) {
 
     // Valid keys.
     var keys = [ 'name', 'type', 'description', 'version', 'formatter',
-        'bounds', 'center', 'minzoom', 'maxzoom' ];
+        'bounds', 'center', 'minzoom', 'maxzoom', 'legend', 'attribution' ];
 
     var stmt = this._db.prepare('REPLACE INTO metadata (name, value) VALUES (?, ?)');
     stmt.on('error', callback);