diff --git a/watcher/common/nova_helper.py b/watcher/common/nova_helper.py
index 1dbc1f1d0..de9ca3973 100644
--- a/watcher/common/nova_helper.py
+++ b/watcher/common/nova_helper.py
@@ -86,12 +86,14 @@ class NovaHelper(object):
             LOG.exception(exc)
             raise exception.ComputeNodeNotFound(name=node_hostname)
 
-    def get_instance_list(self, filters=None, limit=-1):
+    def get_instance_list(self, filters=None, marker=None, limit=-1):
         """List servers for all tenants with details.
 
         This always gets servers with the all_tenants=True filter.
 
-        :param filters: dict of additional filters (optional).
+        :param filters: Dict of additional filters (optional).
+        :param marker: Get servers that appear later in the server
+                       list than that represented by this server id (optional).
         :param limit: Maximum number of servers to return (optional).
                       If limit == -1, all servers will be returned,
                       note that limit == -1 will have a performance
@@ -102,8 +104,8 @@ class NovaHelper(object):
         search_opts = {'all_tenants': True}
         if filters:
             search_opts.update(filters)
-        # TODO(chenker) Add marker param to list Server objects.
         return self.nova.servers.list(search_opts=search_opts,
+                                      marker=marker,
                                       limit=limit)
 
     def get_instance_by_uuid(self, instance_uuid):
diff --git a/watcher/tests/common/test_nova_helper.py b/watcher/tests/common/test_nova_helper.py
index a121589d2..3732f2047 100644
--- a/watcher/tests/common/test_nova_helper.py
+++ b/watcher/tests/common/test_nova_helper.py
@@ -168,14 +168,14 @@ class TestNovaHelper(base.TestCase):
         with mock.patch.object(nova_util, 'nova') as nova_mock:
             result = nova_util.get_instance_list()
             nova_mock.servers.list.assert_called_once_with(
-                search_opts={'all_tenants': True}, limit=-1)
+                search_opts={'all_tenants': True}, marker=None, limit=-1)
             self.assertIs(result, nova_mock.servers.list.return_value)
         # Call it again with filters.
         with mock.patch.object(nova_util, 'nova') as nova_mock:
             result = nova_util.get_instance_list(filters={'host': 'fake-host'})
             nova_mock.servers.list.assert_called_once_with(
                 search_opts={'all_tenants': True, 'host': 'fake-host'},
-                limit=-1)
+                marker=None, limit=-1)
             self.assertIs(result, nova_mock.servers.list.return_value)
 
     @mock.patch.object(time, 'sleep', mock.Mock())