diff --git a/tests/testthat/test-lineplot_refvalues.R b/tests/testthat/test-lineplot_refvalues.R
index 229aca6..b00790a 100644
--- a/tests/testthat/test-lineplot_refvalues.R
+++ b/tests/testthat/test-lineplot_refvalues.R
@@ -1,4 +1,4 @@
-test_that("generate_ref_line_data groups ref values", {
+test_that("generate_ref_line_data groups ref values" |> vdoc[["add_spec"]](specs$lineplot_module$reference_values), {
   common <- "Common reference value"
   
   df <- data.frame(