diff --git a/mongoengine/fields.py b/mongoengine/fields.py
index a56bad83..b192961f 100644
--- a/mongoengine/fields.py
+++ b/mongoengine/fields.py
@@ -1449,9 +1449,9 @@ class SequenceField(BaseField):
         data = collection.find_one({"_id": sequence_id})
 
         if data:
-            return data['next']+1
+            return self.value_decorator(data['next']+1)
 
-        return 1
+        return self.value_decorator(1)
 
     def get_sequence_name(self):
         if self.sequence_name:
diff --git a/tests/fields/fields.py b/tests/fields/fields.py
index a9fed3cf..e803af84 100644
--- a/tests/fields/fields.py
+++ b/tests/fields/fields.py
@@ -1914,6 +1914,21 @@ class FieldTest(unittest.TestCase):
         self.db['mongoengine.counters'].drop()
 
         self.assertEqual(Person.id.get_next_value(), 1)
+
+        class Person(Document):
+            id = SequenceField(primary_key=True, value_decorator=str)
+            name = StringField()
+
+        self.db['mongoengine.counters'].drop()
+        Person.drop_collection()
+
+        for x in xrange(10):
+            Person(name="Person %s" % x).save()
+
+        self.assertEqual(Person.id.get_next_value(), '11')
+        self.db['mongoengine.counters'].drop()
+
+        self.assertEqual(Person.id.get_next_value(), '1')
         
     def test_sequence_field_sequence_name(self):
         class Person(Document):