diff --git a/heat/api/middleware/fault.py b/heat/api/middleware/fault.py
index 2a2fe4b57..403a1872a 100644
--- a/heat/api/middleware/fault.py
+++ b/heat/api/middleware/fault.py
@@ -59,9 +59,7 @@ class FaultWrapper(wsgi.Middleware):
         'EntityNotFound': webob.exc.HTTPNotFound,
         'NotFound': webob.exc.HTTPNotFound,
         'ResourceActionNotSupported': webob.exc.HTTPBadRequest,
-        'ResourceNotFound': webob.exc.HTTPNotFound,
         'InvalidGlobalResource': webob.exc.HTTPInternalServerError,
-        'SnapshotNotFound': webob.exc.HTTPNotFound,
         'ResourceNotAvailable': webob.exc.HTTPNotFound,
         'PhysicalResourceNameAmbiguity': webob.exc.HTTPBadRequest,
         'InvalidTenant': webob.exc.HTTPForbidden,