diff --git a/tests/testthat/test_LearnerClust.R b/tests/testthat/test_LearnerClust.R
index 7435a0a..ec156cc 100644
--- a/tests/testthat/test_LearnerClust.R
+++ b/tests/testthat/test_LearnerClust.R
@@ -36,7 +36,7 @@ test_that("empty predict set (#421)", {
   hout = resampling$instantiate(task)
   model = learner$train(task, hout$train_set(1))
   pred = learner$predict(task, hout$test_set(1))
-  expect_true(any(grepl("No data to predict on", learner$log$msg, fixed = TRUE)))
+  expect_match(learner$log$msg, "No data to predict on", fixed = TRUE, all = FALSE)
 })
 
 test_that("assignment saving works", {