diff --git a/aws/resource_aws_api_gateway_usage_plan.go b/aws/resource_aws_api_gateway_usage_plan.go
index 11f4d2dad5b..257e40311a6 100644
--- a/aws/resource_aws_api_gateway_usage_plan.go
+++ b/aws/resource_aws_api_gateway_usage_plan.go
@@ -235,7 +235,7 @@ func resourceAwsApiGatewayUsagePlanRead(d *schema.ResourceData, meta interface{}
 		UsagePlanId: aws.String(d.Id()),
 	})
 	if err != nil {
-		if awsErr, ok := err.(awserr.Error); ok && awsErr.Code() == "NotFoundException" {
+		if awsErr, ok := err.(awserr.Error); ok && awsErr.Code() == apigateway.ErrCodeNotFoundException {
 			log.Printf("[WARN] API Gateway Usage Plan (%s) not found, removing from state", d.Id())
 			d.SetId("")
 			return nil
diff --git a/aws/resource_aws_api_gateway_usage_plan_test.go b/aws/resource_aws_api_gateway_usage_plan_test.go
index 47036795eb7..ca440e0c645 100644
--- a/aws/resource_aws_api_gateway_usage_plan_test.go
+++ b/aws/resource_aws_api_gateway_usage_plan_test.go
@@ -414,7 +414,7 @@ func testAccCheckAWSAPIGatewayUsagePlanDestroy(s *terraform.State) error {
 		if !ok {
 			return err
 		}
-		if aws2err.Code() != "NotFoundException" {
+		if aws2err.Code() != apigateway.ErrCodeNotFoundException {
 			return err
 		}