diff --git a/builtin/providers/aws/resource_aws_spot_instance_request.go b/builtin/providers/aws/resource_aws_spot_instance_request.go
index 81f51623eed5..56de8992cdd4 100644
--- a/builtin/providers/aws/resource_aws_spot_instance_request.go
+++ b/builtin/providers/aws/resource_aws_spot_instance_request.go
@@ -90,7 +90,7 @@ func resourceAwsSpotInstanceRequestCreate(d *schema.ResourceData, meta interface
 			Placement:           instanceOpts.SpotPlacement,
 			SecurityGroupIds:    instanceOpts.SecurityGroupIDs,
 			SecurityGroups:      instanceOpts.SecurityGroups,
-			SubnetID:            instanceOpts.SubnetID,
+			SubnetId:            instanceOpts.SubnetID,
 			UserData:            instanceOpts.UserData64,
 		},
 	}
diff --git a/builtin/providers/aws/resource_aws_spot_instance_request_test.go b/builtin/providers/aws/resource_aws_spot_instance_request_test.go
index 4f4df65bfb41..be2ae395647d 100644
--- a/builtin/providers/aws/resource_aws_spot_instance_request_test.go
+++ b/builtin/providers/aws/resource_aws_spot_instance_request_test.go
@@ -181,7 +181,7 @@ func testAccCheckAWSSpotInstanceRequestAttributes(
 func testAccCheckAWSSpotInstanceRequestAttributesVPC(
 	sir *ec2.SpotInstanceRequest) resource.TestCheckFunc {
 	return func(s *terraform.State) error {
-		if sir.LaunchSpecification.SubnetID == nil {
+		if sir.LaunchSpecification.SubnetId == nil {
 			return fmt.Errorf("SubnetID was not passed, but should have been for this instance to belong to a VPC")
 		}
 		return nil