diff --git a/nova/api/openstack/placement/handlers/resource_provider.py b/nova/api/openstack/placement/handlers/resource_provider.py
index 07206c552..19fd8fdb2 100644
--- a/nova/api/openstack/placement/handlers/resource_provider.py
+++ b/nova/api/openstack/placement/handlers/resource_provider.py
@@ -185,8 +185,8 @@ def create_resource_provider(req):
         resource_provider.create()
     except db_exc.DBDuplicateEntry as exc:
         raise webob.exc.HTTPConflict(
-            _('Conflicting resource provider already exists: %(error)s') %
-            {'error': exc})
+            _('Conflicting resource provider %(name)s already exists.') %
+            {'name': data['name']})
     except exception.ObjectActionError as exc:
         raise webob.exc.HTTPBadRequest(
             _('Unable to create resource provider %(rp_uuid)s: %(error)s') %
@@ -331,8 +331,8 @@ def update_resource_provider(req):
         resource_provider.save()
     except db_exc.DBDuplicateEntry as exc:
         raise webob.exc.HTTPConflict(
-            _('Conflicting resource provider already exists: %(error)s') %
-            {'error': exc})
+            _('Conflicting resource provider %(name)s already exists.') %
+            {'name': data['name']})
     except exception.ObjectActionError as exc:
         raise webob.exc.HTTPBadRequest(
             _('Unable to save resource provider %(rp_uuid)s: %(error)s') %
diff --git a/nova/tests/functional/api/openstack/placement/gabbits/resource-provider.yaml b/nova/tests/functional/api/openstack/placement/gabbits/resource-provider.yaml
index ee37a80d4..239efad49 100644
--- a/nova/tests/functional/api/openstack/placement/gabbits/resource-provider.yaml
+++ b/nova/tests/functional/api/openstack/placement/gabbits/resource-provider.yaml
@@ -54,7 +54,7 @@ tests:
       uuid: $ENVIRON['RP_UUID']
   status: 409
   response_strings:
-      - Conflicting resource provider already exists
+      - Conflicting resource provider $ENVIRON['RP_NAME'] already exists
   response_json_paths:
       $.errors[0].title: Conflict
 
@@ -67,7 +67,7 @@ tests:
       uuid: ada30fb5-566d-4fe1-b43b-28a9e988790c
   status: 409
   response_strings:
-      - Conflicting resource provider already exists
+      - Conflicting resource provider $ENVIRON['RP_NAME'] already exists
   response_json_paths:
       $.errors[0].title: Conflict