From c48a5bf42b2584a08605fb8c36dbfc740aa65a4e Mon Sep 17 00:00:00 2001
From: Clint Shryock <clint@ctshryock.com>
Date: Thu, 19 Mar 2015 16:45:07 -0500
Subject: [PATCH] provider/aws: Fix DB Subnet refresh issue

---
 builtin/providers/aws/resource_aws_db_subnet_group.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/builtin/providers/aws/resource_aws_db_subnet_group.go b/builtin/providers/aws/resource_aws_db_subnet_group.go
index d204c5f96..a7bbc7b47 100644
--- a/builtin/providers/aws/resource_aws_db_subnet_group.go
+++ b/builtin/providers/aws/resource_aws_db_subnet_group.go
@@ -79,6 +79,11 @@ func resourceAwsDbSubnetGroupRead(d *schema.ResourceData, meta interface{}) erro
 
 	describeResp, err := rdsconn.DescribeDBSubnetGroups(&describeOpts)
 	if err != nil {
+		if ec2err, ok := err.(aws.APIError); ok && ec2err.Code == "DBSubnetGroupNotFoundFault" {
+			// Update state to indicate the db subnet no longer exists.
+			d.SetId("")
+			return nil
+		}
 		return err
 	}