ResizeOpts is now a struct.
diff --git a/acceptance/openstack/compute/v2/servers_test.go b/acceptance/openstack/compute/v2/servers_test.go
index 6bdc9e9..00299c0 100644
--- a/acceptance/openstack/compute/v2/servers_test.go
+++ b/acceptance/openstack/compute/v2/servers_test.go
@@ -63,7 +63,7 @@
 }
 
 func createServer(t *testing.T, client *gophercloud.ServiceClient, choices *ComputeChoices) (*servers.Server, error) {
-	if testing.Short(){
+	if testing.Short() {
 		t.Skip("Skipping test that requires server creation in short mode.")
 	}
 
@@ -319,7 +319,10 @@
 
 	t.Logf("Attempting to resize server [%s]", server.ID)
 
-	if res := servers.Resize(client, server.ID, choices.FlavorIDResize); res.Err != nil {
+	opts := &servers.ResizeOpts{
+		FlavorRef: choices.FlavorIDResize,
+	}
+	if res := servers.Resize(client, server.ID, opts); res.Err != nil {
 		t.Fatal(res.Err)
 	}