diff --git a/docs/source/API.rst b/docs/source/API.rst
index 8a7835c3..a244a37f 100644
--- a/docs/source/API.rst
+++ b/docs/source/API.rst
@@ -54,8 +54,8 @@ nodefilter API
 POST nodefilter
 ^^^^^^^^^^^^^^^
 
-The Nodes API will provide a list of node names based on site_design.  This API
-requires site_design in the POST body with an optional node_filter to return the node
+The Nodes API will provide a list of node names based on design_ref.  This API
+requires design_ref in the POST body with an optional node_filter to return the node
 names.
 
 bootdata
diff --git a/drydock_provisioner/control/nodes.py b/drydock_provisioner/control/nodes.py
index 37f8a499..dbd9a0a6 100644
--- a/drydock_provisioner/control/nodes.py
+++ b/drydock_provisioner/control/nodes.py
@@ -102,15 +102,16 @@ class NodeFilterResource(StatefulResource):
         try:
             json_data = self.req_json(req)
             node_filter = json_data.get('node_filter', None)
-            site_design = json_data.get('site_design', None)
-            if site_design is None:
-                self.info(req.context, 'Missing required input value: site_design')
+            design_ref = json_data.get('design_ref', None)
+            if design_ref is None:
+                self.info(req.context, 'Missing required input value: design_ref')
                 self.return_error(
                     resp,
                     falcon.HTTP_400,
-                    message='Missing input required value: site_design',
+                    message='Missing input required value: design_ref',
                     retry=False)
                 return
+            _, site_design = self.orchestrator.get_effective_site(design_ref)
             nodes = self.orchestrator.process_node_filter(node_filter=node_filter,
                                                           site_design=site_design)
             resp_list = [n.name for n in nodes if nodes]
diff --git a/drydock_provisioner/drydock_client/client.py b/drydock_provisioner/drydock_client/client.py
index 20542499..7507d66c 100644
--- a/drydock_provisioner/drydock_client/client.py
+++ b/drydock_provisioner/drydock_client/client.py
@@ -44,12 +44,12 @@ class DrydockClient(object):
 
         :param SiteDesign design_ref: A SiteDesign object.
         :param NodeFilter node_filter (optional): A NodeFilter object.
-        :return: A list of node names based on the node_filter and site_design.
+        :return: A list of node names based on the node_filter and design_ref.
         """
         endpoint = 'v1.0/nodefilter'
         body = {
             'node_filter': node_filter,
-            'site_design': design_ref
+            'design_ref': design_ref
         }
         resp = self.session.post(endpoint, data=body)
 
diff --git a/tests/unit/test_api_nodes_unit.py b/tests/unit/test_api_nodes_unit.py
index 76dc5a12..c633abc1 100644
--- a/tests/unit/test_api_nodes_unit.py
+++ b/tests/unit/test_api_nodes_unit.py
@@ -38,7 +38,7 @@ class TestNodesApiUnit(object):
         hdr = self.get_standard_header()
         body = {
             'node_filter': 'filters',
-            'site_design': design_ref,
+            'design_ref': design_ref,
         }
 
         result = falcontest.simulate_post(