From 2f1b3a739c983f6b7024ee15e798728aef671d4b Mon Sep 17 00:00:00 2001
From: Konrad Rotkiewicz <konrad.rotkiewicz@gmail.com>
Date: Wed, 29 Nov 2017 19:07:40 +0100
Subject: [PATCH] add empty value for ip version for global address (#799)

---
 google/resource_compute_global_address.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/google/resource_compute_global_address.go b/google/resource_compute_global_address.go
index d067b891..2d2edb22 100644
--- a/google/resource_compute_global_address.go
+++ b/google/resource_compute_global_address.go
@@ -30,7 +30,7 @@ func resourceComputeGlobalAddress() *schema.Resource {
 				Type:         schema.TypeString,
 				Optional:     true,
 				ForceNew:     true,
-				ValidateFunc: validation.StringInSlice([]string{"IPV4", "IPV6"}, false),
+				ValidateFunc: validation.StringInSlice([]string{"IPV4", "IPV6", ""}, false),
 			},
 
 			"project": &schema.Schema{