diff --git a/lib/Associations/Extend.js b/lib/Associations/Extend.js
index 36357f0f..e02f7fdc 100644
--- a/lib/Associations/Extend.js
+++ b/lib/Associations/Extend.js
@@ -108,6 +108,10 @@ function extendInstance(Model, Instance, Driver, association, opts) {
 
 					var fields = Object.keys(association.field);
 
+					if (!Extension.isInstance) {
+						Extension = new association.model(Extension);
+					}
+
 					for (var i = 0; i < Model.id.length; i++) {
 						Extension[fields[i]] = Instance[Model.id[i]];
 					}
diff --git a/lib/Instance.js b/lib/Instance.js
index d7557b4f..c9714221 100755
--- a/lib/Instance.js
+++ b/lib/Instance.js
@@ -123,6 +123,7 @@ function Instance(Model, opts) {
 	};
 	var afterSave = function (cb, create, err) {
 		emitEvent("save", err, instance);
+
 		if (create) {
 			Hook.trigger(instance, opts.hooks.afterCreate, !err);
 		}