diff --git a/rackspace/compute/v2/servers/delegate.go b/rackspace/compute/v2/servers/delegate.go
index e324dce..7810d15 100644
--- a/rackspace/compute/v2/servers/delegate.go
+++ b/rackspace/compute/v2/servers/delegate.go
@@ -61,7 +61,7 @@
 // While in this state, you can explore the use of the new server's configuration.
 // If you like it, call ConfirmResize() to commit the resize permanently.
 // Otherwise, call RevertResize() to restore the old configuration.
-func Resize(client *gophercloud.ServiceClient, id string, opts os.ResizeOpts) os.ActionResult {
+func Resize(client *gophercloud.ServiceClient, id string, opts os.ResizeOptsBuilder) os.ActionResult {
 	return os.Resize(client, id, opts)
 }