diff --git a/api-ref/source/v2/parameters.yaml b/api-ref/source/v2/parameters.yaml
index b01ed792e..258001acf 100644
--- a/api-ref/source/v2/parameters.yaml
+++ b/api-ref/source/v2/parameters.yaml
@@ -6166,7 +6166,8 @@ router-external_gateway_info:
   description: |
     The external gateway information of the router.
     If the router has an external gateway, this would be a dict with
-    ``network_id``, ``enable_snat`` and ``external_fixed_ips``.
+    ``network_id``, ``enable_snat``, ``external_fixed_ips`` and
+    ``qos_policy_id``.
     Otherwise, this would be ``null``.
   in: body
   required: true
@@ -6175,7 +6176,8 @@ router-external_gateway_info-request:
   description: |
     The external gateway information of the router.
     If the router has an external gateway, this would be a dict with
-    ``network_id``, ``enable_snat`` and ``external_fixed_ips``.
+    ``network_id``, ``enable_snat``, ``external_fixed_ips`` and
+    ``qos_policy_id``.
     Otherwise, this would be ``null``.
   in: body
   required: false
diff --git a/api-ref/source/v2/routers.inc b/api-ref/source/v2/routers.inc
index 606ff0121..12390b292 100644
--- a/api-ref/source/v2/routers.inc
+++ b/api-ref/source/v2/routers.inc
@@ -143,13 +143,6 @@ BFD monitors for Extraroutes extension (``bfd-for-extraroutes``)
 BFD monitors for Extraroutes extension (``bfd-for-extraroutes``) adds
 ``bfd_monitor_id`` field to the extraroutes dictionary.
 
-Router enable ndp proxy extension (router-extend-ndp-proxy)
-===========================================================
-
-The ``router-extend-ndp-proxy`` extension adds a ``enable_ndp_proxy`` parameter
-to router. If this parameter is set as ``false``, the router don't support
-``ndp_proxy``.
-
 .. warning::
 
     This API extension was merged as experimental to enable parallel
@@ -158,6 +151,19 @@ to router. If this parameter is set as ``false``, the router don't support
     removal of this warning will mark when the reference implementation
     gets merged and the feauture is ready to be consumed.
 
+Router enable ndp proxy extension (router-extend-ndp-proxy)
+===========================================================
+
+The ``router-extend-ndp-proxy`` extension adds a ``enable_ndp_proxy`` parameter
+to router. If this parameter is set as ``false``, the router don't support
+``ndp_proxy``.
+
+Router gateway IP QoS (qos-gateway-ip)
+======================================
+
+The ``qos-gateway-ip`` extension adds ``qos_policy_id`` to the
+``external_gateway_info`` field of routers.
+
 List routers
 ============