diff --git a/README.rst b/README.rst
index 286313e..ff4eb31 100644
--- a/README.rst
+++ b/README.rst
@@ -27,12 +27,12 @@ Usage
 .. code-block:: python
 
     from predicthq import Client
-    
+
     phq = Client(access_token="$ACCESS_TOKEN")
-    
-    for event in phq.events.search(q="Foo Fighters", rank_level=[4, 5], country='US'):
+
+    for event in phq.events.search(q="Foo Fighters", rank_level=[4, 5], place={"scope": ["5391959", "5368361"]}):
         print(event.rank, event.category, event.title, event.start.strftime('%Y-%m-%d')))
-    
+
 Endpoints
 #########
 
diff --git a/predicthq/endpoints/decorators.py b/predicthq/endpoints/decorators.py
index 5a1b4a5..63f449c 100644
--- a/predicthq/endpoints/decorators.py
+++ b/predicthq/endpoints/decorators.py
@@ -22,7 +22,10 @@ def _to_url_params(data, glue=".", separator=","):
             params[key] = separator.join(map(six.text_type, value))
         elif isinstance(value, dict):
             for subkey, subvalue in six.iteritems(value):
-                params[glue.join((key, subkey))] = subvalue
+                if isinstance(subvalue, list):
+                    params[glue.join((key, subkey))] = separator.join(map(six.text_type, subvalue))
+                else:
+                    params[glue.join((key, subkey))] = subvalue
         else:
             params[key] = value
     return params
diff --git a/tests/endpoints/v1/events_tests.py b/tests/endpoints/v1/events_tests.py
index 517fb2b..0b3c241 100644
--- a/tests/endpoints/v1/events_tests.py
+++ b/tests/endpoints/v1/events_tests.py
@@ -12,17 +12,39 @@
 class EventsTest(unittest.TestCase):
 
     @with_mock_client()
-    def test_search_params(self, client):
+    def test_search_params_underscores(self, client):
         client.events.search(id="id", q="query", rank_level=[4,5], rank__gt=85, country=["NZ", "AU"],
              within__radius="2km", within__longitude=-71.0432, within__latitude=42.346,
              label=["label1", "label2"], category="category",
+             place__scope=["place1", "place2"], place__exact=["place3"],
              start__gte="2016-03-01", start__lt=datetime(2016, 4, 1), start__tz="Pacific/Auckland",
-             signal__id='zVNLr8tHvWQw', signal__explain=datetime(2016, 4, 1))
+             active__gte="2016-03-01", active__lt=datetime(2016, 4, 1), active__tz="Pacific/Auckland",
+             signal__id="zVNLr8tHvWQw", signal__explain=datetime(2016, 4, 1))
 
         client.request.assert_called_once_with('get', '/v1/events/', params={
             'id': 'id', 'rank.gt': 85, 'rank_level': '4,5', 'category': 'category', 'country': 'NZ,AU',
             'within': '2km@42.346,-71.0432', 'label': 'label1,label2', 'q': 'query',
+            'place.scope': 'place1,place2', 'place.exact': 'place3',
             'start.lt': '2016-04-01T00:00:00.000000', 'start.gte': '2016-03-01T00:00:00.000000', 'start.tz': 'Pacific/Auckland',
+            'active.lt': '2016-04-01T00:00:00.000000', 'active.gte': '2016-03-01T00:00:00.000000', 'active.tz': 'Pacific/Auckland',
+            'signal.id': 'zVNLr8tHvWQw', 'signal.explain': '2016-04-01'})
+
+    @with_mock_client()
+    def test_search_params_dicts(self, client):
+        client.events.search(id="id", q="query", rank_level=[4,5], rank={"gt": 85}, country=["NZ", "AU"],
+             within={"radius": "2km", "longitude": -71.0432, "latitude": 42.346},
+             label=["label1", "label2"], category="category",
+             place={"scope": ["place1", "place2"], "exact": "place3"},
+             start={"gte": "2016-03-01", "lt": datetime(2016, 4, 1), "tz": "Pacific/Auckland"},
+             active={"gte": "2016-03-01", "lt": datetime(2016, 4, 1), "tz": "Pacific/Auckland"},
+             signal={"id": "zVNLr8tHvWQw", "explain": datetime(2016, 4, 1)})
+
+        client.request.assert_called_once_with('get', '/v1/events/', params={
+            'id': 'id', 'rank.gt': 85, 'rank_level': '4,5', 'category': 'category', 'country': 'NZ,AU',
+            'within': '2km@42.346,-71.0432', 'label': 'label1,label2', 'q': 'query',
+            'place.scope': 'place1,place2', 'place.exact': 'place3',
+            'start.lt': '2016-04-01T00:00:00.000000', 'start.gte': '2016-03-01T00:00:00.000000', 'start.tz': 'Pacific/Auckland',
+            'active.lt': '2016-04-01T00:00:00.000000', 'active.gte': '2016-03-01T00:00:00.000000', 'active.tz': 'Pacific/Auckland',
             'signal.id': 'zVNLr8tHvWQw', 'signal.explain': '2016-04-01'})
 
     @with_mock_client()