diff --git a/neutron_lib/api/definitions/qos_pps_minimum_rule.py b/neutron_lib/api/definitions/qos_pps_minimum_rule.py
index c66976545..b504e0491 100644
--- a/neutron_lib/api/definitions/qos_pps_minimum_rule.py
+++ b/neutron_lib/api/definitions/qos_pps_minimum_rule.py
@@ -48,7 +48,7 @@ SUB_RESOURCE_ATTRIBUTE_MAP = {
                 'allow_post': True,
                 'allow_put': True,
                 'is_visible': True,
-                'default': None,
+                'default': constants.EGRESS_DIRECTION,
                 'is_filter': True,
                 'is_sort_key': True,
                 'validate': {