diff --git a/kubernetes_crds/kuryr_crds/kuryrnetpolicy.yaml b/kubernetes_crds/kuryr_crds/kuryrnetpolicy.yaml
index c791e16f9..dc0a7e07b 100644
--- a/kubernetes_crds/kuryr_crds/kuryrnetpolicy.yaml
+++ b/kubernetes_crds/kuryr_crds/kuryrnetpolicy.yaml
@@ -45,6 +45,7 @@ spec:
                   properties:
                     remote_ip_prefixes:
                       type: object
+                      x-kubernetes-preserve-unknown-fields: true
                     namespace:
                       type: string
                     security_group_rule:
@@ -78,6 +79,7 @@ spec:
                   - security_group_rule
                   properties:
                     remote_ip_prefixes:
+                      x-kubernetes-preserve-unknown-fields: true
                       type: object
                     namespace:
                       type: string