diff --git a/lib/adapters/mongodb.js b/lib/adapters/mongodb.js
index 1f601bb3..7cab8c67 100644
--- a/lib/adapters/mongodb.js
+++ b/lib/adapters/mongodb.js
@@ -63,7 +63,7 @@ MongoDB.prototype.create = function (model, data, callback) {
 };
 
 MongoDB.prototype.save = function (model, data, callback) {
-    this.collection(model).save({_id: new ObjectID(data.id)}, data, function (err) {
+    this.collection(model).update({_id: new ObjectID(data.id)}, data, function (err) {
         callback(err);
     });
 };