diff --git a/openstack/cdn/v1/base/results.go b/openstack/cdn/v1/base/results.go
index 4e1b524..2dfde7d 100644
--- a/openstack/cdn/v1/base/results.go
+++ b/openstack/cdn/v1/base/results.go
@@ -1,10 +1,6 @@
 package base
 
-import (
-	"errors"
-
-	"github.com/gophercloud/gophercloud"
-)
+import "github.com/gophercloud/gophercloud"
 
 // HomeDocument is a resource that contains all the resources for the CDN API.
 type HomeDocument map[string]interface{}
@@ -16,17 +12,9 @@
 
 // Extract is a function that accepts a result and extracts a home document resource.
 func (r GetResult) Extract() (*HomeDocument, error) {
-	if r.Err != nil {
-		return nil, r.Err
-	}
-
-	submap, ok := r.Body.(map[string]interface{})["resources"]
-	if !ok {
-		return nil, errors.New("Unexpected HomeDocument structure")
-	}
-	casted := HomeDocument(submap.(map[string]interface{}))
-
-	return &casted, nil
+	var s HomeDocument
+	err := r.ExtractInto(&s)
+	return &s, err
 }
 
 // PingResult represents the result of a Ping operation.