diff --git a/README.md b/README.md
index 55c04d6..2b9957c 100644
--- a/README.md
+++ b/README.md
@@ -175,8 +175,9 @@ with the documentation for each option:
 
 ### `value_type`
 
-The value_type argument can be used to give a type or sequence of types that the option
-is allowed to have. Trying to set an option with a non-allowed type raises a
+The `value_type` argument can be used to give a type or sequence of types that
+the option is allowed to have. Trying to set an option with a non-allowed type
+raises a
 `ValueError`:
 ```python
 >>> d2 = D(d=-2)
@@ -387,6 +388,12 @@ or all values including defaults, by passing `True` to the `with_defaults` argum
 ```
 
 
+### Pickling (with dill)
+
+`Options` objects can be pickled using `dill`. This is tested. Pickling of
+`MutableOptions` objects is not currently supported.
+
+
 Examples
 --------
 
diff --git a/optionsfactory/optionsfactory.py b/optionsfactory/optionsfactory.py
index acb92b8..98df319 100644
--- a/optionsfactory/optionsfactory.py
+++ b/optionsfactory/optionsfactory.py
@@ -546,6 +546,14 @@ def __setattr__(self, key, value):
                 raise TypeError("Options does not allow assigning to attributes")
             super(OptionsFactory.Options, self).__setattr__(key, value)
 
+        def __getstate__(self):
+            # Need to define this so that pickling with dill works
+            return vars(self)
+
+        def __setstate__(self, state):
+            # Need to define this so that pickling with dill works
+            vars(self).update(state)
+
         def is_default(self, key):
             try:
                 return self.__is_default[key]