diff --git a/neutron/values.yaml b/neutron/values.yaml
index f2f7e52ac7..e4aba783f8 100644
--- a/neutron/values.yaml
+++ b/neutron/values.yaml
@@ -842,7 +842,7 @@ conf:
         openstack router unset --external-gateway $ROUTER
         openstack router set --disable --no-ha $ROUTER
 
-        SUBNS=$(openstack router show $ROUTER -c interfaces_info --format=value | jq .[].subnet_id | tr -d '\r\"')
+        SUBNS=$(openstack router show $ROUTER -c interfaces_info --format=value | python -m json.tool | grep -oP '(?<="subnet_id": ")[a-f0-9\-]{36}(?=")' | sort | uniq)
         for SUBN in $SUBNS
         do
           openstack router remove subnet $ROUTER $SUBN