diff --git a/tests/testthat/helper-vdiffr.R b/tests/testthat/helper-vdiffr.R
new file mode 100644
index 0000000..8c45b0f
--- /dev/null
+++ b/tests/testthat/helper-vdiffr.R
@@ -0,0 +1,4 @@
+expect_doppelganger <- function(title, fig, path = NULL, ...) {
+  testthat::skip_if_not_installed("vdiffr")
+  vdiffr::expect_doppelganger(title, fig, path = path, ...)
+}