diff --git a/dist/namespace.js b/dist/namespace.js
index 3681a32..201daeb 100644
--- a/dist/namespace.js
+++ b/dist/namespace.js
@@ -120,10 +120,12 @@
 		{
 			superClass = window.include(superClass);
 		}
+		subClass.prototype = superClass.prototype;
+		subClass.prototype.__parent = superClass.prototype;
 		subClass.prototype = Object.create(
-			superClass.prototype
+			subClass.prototype
 		);
 		return subClass.prototype;
 	};
 
-}(window));
\ No newline at end of file
+}(window));
diff --git a/dist/namespace.min.js b/dist/namespace.min.js
index ad6c089..873c105 100644
--- a/dist/namespace.min.js
+++ b/dist/namespace.min.js
@@ -1,2 +1,2 @@
 /*! namespace 1.2.0 */
-!function(){"use strict";!function(a){"namespace"in a||(a.namespace=function(b){for(var c=b.split("."),d=a,e="",f=0,g=c.length;g>f;f++)e=c[f],d[e]=d[e]||{},d=d[e];return d})}(window),function(a,b){"include"in a||(a.include=function(c,d){var e=c.split("."),f=a,g="";d=d!==b?!!d:!0;for(var h=0,i=e.length;i>h;h++){if(g=e[h],!f[g]){if(!d)return null;throw"Unable to include '"+c+"'"}f=f[g]}return f})}(window),function(a){"extend"in a||(a.extend=function(b,c){return"string"==typeof c&&(c=a.include(c)),b.prototype=Object.create(c.prototype),b.prototype})}(window);}();
\ No newline at end of file
+!function(){"use strict";!function(a){"namespace"in a||(a.namespace=function(b){for(var c=b.split("."),d=a,e="",f=0,g=c.length;g>f;f++)e=c[f],d[e]=d[e]||{},d=d[e];return d})}(window),function(a,b){"include"in a||(a.include=function(c,d){var e=c.split("."),f=a,g="";d=d!==b?!!d:!0;for(var h=0,i=e.length;i>h;h++){if(g=e[h],!f[g]){if(!d)return null;throw"Unable to include '"+c+"'"}f=f[g]}return f})}(window),function(a){"extend"in a||(a.extend=function(b,c){return"string"==typeof c&&(c=a.include(c)),b.prototype=c.prototype,b.prototype.__parent=c.prototype,b.prototype=Object.create(b.prototype),b.prototype})}(window);}();
\ No newline at end of file
diff --git a/src/extend.js b/src/extend.js
index c599bd7..af55470 100644
--- a/src/extend.js
+++ b/src/extend.js
@@ -26,10 +26,12 @@
 		{
 			superClass = window.include(superClass);
 		}
+		subClass.prototype = superClass.prototype;
+		subClass.prototype.__parent = superClass.prototype;
 		subClass.prototype = Object.create(
-			superClass.prototype
+			subClass.prototype
 		);
 		return subClass.prototype;
 	};
 
-}(window));
\ No newline at end of file
+}(window));
diff --git a/test/index.html b/test/index.html
index 24bac51..662080c 100644
--- a/test/index.html
+++ b/test/index.html
@@ -52,6 +52,24 @@
 		assert.ok(o instanceof ParentClass, "Inherit parent class");
 
 	});
+
+	test('extend.parent', function(assert){
+                expect(3);
+
+		var ParentClass = function(){};
+                ParentClass.prototype.ping = function(){return "parent";}
+                var MyClass = function(){};
+
+		extend(MyClass, ParentClass);
+		MyClass.prototype.ping = function(){return "child";}
+
+                var o = new MyClass();
+
+                assert.ok(o.ping() === "child", "Child function");
+                assert.ok(o.__parent.ping.apply(o) === "parent", "Parent function");
+		assert.ok(o.ping() !== o.__parent.ping.apply(o), "Child != Parent function");
+
+        });
 	</script>
 </body>
-</html>
\ No newline at end of file
+</html>