diff --git a/google/data_source_google_compute_vpn_gateway.go b/google/data_source_google_compute_vpn_gateway.go
index 47cbe8cb380..e7ddf9217cb 100644
--- a/google/data_source_google_compute_vpn_gateway.go
+++ b/google/data_source_google_compute_vpn_gateway.go
@@ -41,7 +41,7 @@ func dataSourceGoogleComputeVpnGateway() *schema.Resource {
 
 			"network": &schema.Schema{
 				Type:     schema.TypeString,
-				Optional: true,
+				Computed: true,
 			},
 		},
 	}