diff --git a/Object.js b/Object.js
index 8696df5..14dc6c1 100644
--- a/Object.js
+++ b/Object.js
@@ -98,11 +98,15 @@ Object.sort = function(obj, keys){
 				delete obj[k]
 				Object.defineProperty(obj, k, v) } })
 	return obj }
+//* XXX for some reason this shadows Map.prototype.sort
 Object.prototype.sort
 	|| Object.defineProperty(Object.prototype, 'sort', {
+		writable: true,
+		configurable: true,
 		enumerable: false,
 		value: function(keys){
 			return Object.sort(this, keys) }, })
+//*/
 
 
 
diff --git a/main.js b/main.js
index ca5e9b9..8a0ae13 100644
--- a/main.js
+++ b/main.js
@@ -11,6 +11,7 @@
 require('./Object')
 require('./Array')
 require('./Set')
+require('./Map')
 require('./String')
 require('./RegExp')
 module.patchDate = require('./Date').patchDate