diff --git a/tests/testthat/test-verify-variables.R b/tests/testthat/test-verify-variables.R
index 54403dd..66a8f0d 100644
--- a/tests/testthat/test-verify-variables.R
+++ b/tests/testthat/test-verify-variables.R
@@ -21,5 +21,5 @@ test_that("the required variables are present in the dataset", {
   expect_true(verify_required_variables(bef_complete_extra, "bef"))
 
   # When it is a character output, it is a fail.
-  expect_character(verify_required_variables(bef_incomplete, "bef"))
+  expect_type(verify_required_variables(bef_incomplete, "bef"), "character")
 })