diff --git a/tests/test_cargo_concurrent.rs b/tests/test_cargo_concurrent.rs
index 6b4a5b6a0ca..4e8c1a8dbe5 100644
--- a/tests/test_cargo_concurrent.rs
+++ b/tests/test_cargo_concurrent.rs
@@ -86,7 +86,7 @@ test!(one_install_should_be_bad {
     assert_that(bad, execs().with_status(101).with_stderr_contains(&format!("\
 {error} binary `foo[..]` already exists in destination as part of `[..]`
 ", error = ERROR)));
-    assert_that(good, execs().with_status(0).with_stderr("\
+    assert_that(good, execs().with_status(0).with_stderr_contains("\
 warning: be sure to add `[..]` to your PATH [..]
 "));