diff --git a/tunnel_virtual_networks.go b/tunnel_virtual_networks.go
index 03f3fe977..29ff4b434 100644
--- a/tunnel_virtual_networks.go
+++ b/tunnel_virtual_networks.go
@@ -36,7 +36,7 @@ type TunnelVirtualNetworksListParams struct {
 type TunnelVirtualNetworkCreateParams struct {
 	AccountID string `json:"-"`
 	Name      string `json:"name"`
-	Comment   string `json:"comment,omitempty"`
+	Comment   string `json:"comment"`
 	IsDefault bool   `json:"is_default"`
 }