diff --git a/openstack/networking/v1/vpcs/requests.go b/openstack/networking/v1/vpcs/requests.go
index 7cfb3ab4a..8bb13e837 100644
--- a/openstack/networking/v1/vpcs/requests.go
+++ b/openstack/networking/v1/vpcs/requests.go
@@ -146,8 +146,9 @@ type UpdateOptsBuilder interface {
 
 // UpdateOpts contains the values used when updating a vpc.
 type UpdateOpts struct {
-	CIDR string `json:"cidr,omitempty"`
-	Name string `json:"name,omitempty"`
+	CIDR             string `json:"cidr,omitempty"`
+	Name             string `json:"name,omitempty"`
+	EnableSharedSnat *bool  `json:"enable_shared_snat,omitempty"`
 }
 
 // ToVpcUpdateMap builds an update body based on UpdateOpts.