diff --git a/attributedict/collections.py b/attributedict/collections.py
index 84ceb26..4e11d99 100644
--- a/attributedict/collections.py
+++ b/attributedict/collections.py
@@ -294,12 +294,6 @@ def __contains__(self, key):
         """
         return self.__dict__.__contains__(key)
 
-    def __reduce__(self):
-        """
-        Return state information for pickling.
-        """
-        return self.__dict__.__reduce__()
-
     def __eq__(self, other):
         """
         Check dictionary is equal to another provided dictionary.
diff --git a/attributedict/tests/test_collections.py b/attributedict/tests/test_collections.py
index 6f66a99..c5e6c06 100644
--- a/attributedict/tests/test_collections.py
+++ b/attributedict/tests/test_collections.py
@@ -14,6 +14,8 @@
 import attributedict
 import attributedict.collections as collections
 
+import pickle
+
 AttributeDict = collections.AttributeDict
 
 class CustomAttributeDict(AttributeDict):
@@ -38,6 +40,12 @@ def test__import(self):
         self.assertTrue(hasattr(attributedict.collections, 'attrdict'))
         self.assertEqual(attributedict.collections.attrdict, attributedict.collections.attrdict)
 
+    def test_pickle(self):
+        attr_dict = AttributeDict({'foo': {'bar': 3}})
+        data = pickle.dumps(attr_dict)
+        restored_attr_dict = pickle.loads(data)
+        self.assertDeepEqual(attr_dict, restored_attr_dict)
+
     def test_init(self):
         for _AttributeDict in [AttributeDict, CustomAttributeDict]:
             attr_dict = _AttributeDict()