diff --git a/nova/api/openstack/compute/migrate_server.py b/nova/api/openstack/compute/migrate_server.py
index f67e10a50c5b..2f93450cf8e9 100644
--- a/nova/api/openstack/compute/migrate_server.py
+++ b/nova/api/openstack/compute/migrate_server.py
@@ -77,7 +77,6 @@ class MigrateServerController(wsgi.Controller):
         except (exception.TooManyInstances, exception.QuotaError) as e:
             raise exc.HTTPForbidden(explanation=e.format_message())
         except (exception.InstanceIsLocked,
-                exception.CannotMigrateWithTargetHost,
                 exception.AllocationMoveFailed) as e:
             raise exc.HTTPConflict(explanation=e.format_message())
         except exception.InstanceInvalidState as state_error:
diff --git a/nova/exception.py b/nova/exception.py
index 87518a89c3db..c7dce6c39d29 100644
--- a/nova/exception.py
+++ b/nova/exception.py
@@ -2312,11 +2312,6 @@ class TraitCreationFailed(NovaException):
     msg_fmt = _("Failed to create trait %(name)s: %(error)s")
 
 
-class CannotMigrateWithTargetHost(NovaException):
-    msg_fmt = _("Cannot migrate with target host. Retry without a host "
-                "specified.")
-
-
 class CannotMigrateToSameHost(NovaException):
     msg_fmt = _("Cannot migrate to the host where the server exists.")
 
diff --git a/nova/tests/unit/api/openstack/compute/test_migrate_server.py b/nova/tests/unit/api/openstack/compute/test_migrate_server.py
index 99572af1bd1c..fca646c3287d 100644
--- a/nova/tests/unit/api/openstack/compute/test_migrate_server.py
+++ b/nova/tests/unit/api/openstack/compute/test_migrate_server.py
@@ -581,10 +581,6 @@ class MigrateServerTestsV256(MigrateServerTestsV234):
         exc_info = exception.ComputeHostNotFound(host='nonexistent_host')
         self._test_migrate_exception(exc_info, webob.exc.HTTPBadRequest)
 
-    def test_migrate_no_request_spec(self):
-        exc_info = exception.CannotMigrateWithTargetHost()
-        self._test_migrate_exception(exc_info, webob.exc.HTTPConflict)
-
     def test_migrate_to_same_host(self):
         exc_info = exception.CannotMigrateToSameHost()
         self._test_migrate_exception(exc_info, webob.exc.HTTPBadRequest)