diff --git a/tests/testthat/test-estimate_secondary.R b/tests/testthat/test-estimate_secondary.R
index 880ccd285..a887c2381 100644
--- a/tests/testthat/test-estimate_secondary.R
+++ b/tests/testthat/test-estimate_secondary.R
@@ -105,7 +105,7 @@ test_that("estimate_secondary works with weigh_delay_priors = TRUE", {
     mean = 2.5, mean_sd = 0.5, sd = 0.47, sd_sd = 0.25, max = 30
   )
   inc_weigh <- estimate_secondary(
-    cases[1:60], delays = delays,
+    cases[1:60], delays = delay_opts(delays),
     obs = obs_opts(scale = list(mean = 0.2, sd = 0.2), week_effect = FALSE),
     weigh_delay_priors = TRUE, verbose = FALSE
   )