diff --git a/surfacebox.go b/surfacebox.go
new file mode 100644
index 0000000..b57a391
--- /dev/null
+++ b/surfacebox.go
@@ -0,0 +1,8 @@
+package x
+
+import "errors"
+import "git.tebibyte.media/tomo/tomo"
+
+func (backend *Backend) NewSurfaceBox() (tomo.SurfaceBox, error) {
+	return nil, errors.New("SurfaceBox not implemented yet")
+}