diff --git a/nova/api/openstack/placement/handlers/resource_class.py b/nova/api/openstack/placement/handlers/resource_class.py
index d62ea16095..99a0dc0536 100644
--- a/nova/api/openstack/placement/handlers/resource_class.py
+++ b/nova/api/openstack/placement/handlers/resource_class.py
@@ -111,12 +111,10 @@ def delete_resource_class(req):
         rc.destroy()
     except exception.ResourceClassCannotDeleteStandard as exc:
         raise webob.exc.HTTPBadRequest(
-            _('Cannot delete standard resource class %(rp_name)s: %(error)s') %
-            {'rp_name': name, 'error': exc})
+            _('Error in delete resource class: %(error)s') % {'error': exc})
     except exception.ResourceClassInUse as exc:
         raise webob.exc.HTTPConflict(
-            _('Unable to delete resource class %(rp_name)s: %(error)s') %
-            {'rp_name': name, 'error': exc})
+            _('Error in delete resource class: %(error)s') % {'error': exc})
     req.response.status = 204
     req.response.content_type = None
     return req.response
diff --git a/nova/tests/functional/api/openstack/placement/gabbits/resource-class-in-use.yaml b/nova/tests/functional/api/openstack/placement/gabbits/resource-class-in-use.yaml
index e96d0896e5..a641eb05d7 100644
--- a/nova/tests/functional/api/openstack/placement/gabbits/resource-class-in-use.yaml
+++ b/nova/tests/functional/api/openstack/placement/gabbits/resource-class-in-use.yaml
@@ -55,7 +55,7 @@ tests:
   DELETE: /resource_classes/CUSTOM_GOLD
   status: 409
   response_strings:
-      - Unable to delete resource class
+      - Error in delete resource class
       - Class is in use in inventory
 
 - name: delete the allocation
@@ -66,7 +66,7 @@ tests:
   DELETE: /resource_classes/CUSTOM_GOLD
   status: 409
   response_strings:
-      - Unable to delete resource class
+      - Error in delete resource class
       - Class is in use in inventory
 
 - name: delete the inventory
@@ -75,4 +75,4 @@ tests:
 
 - name: delete resource class
   DELETE: /resource_classes/CUSTOM_GOLD
-  status: 204
\ No newline at end of file
+  status: 204