diff --git a/tests/by-util/test_comm.rs b/tests/by-util/test_comm.rs
index b470f708b..de75839de 100644
--- a/tests/by-util/test_comm.rs
+++ b/tests/by-util/test_comm.rs
@@ -50,7 +50,6 @@ fn empty_empty() {
         .stdout_only_fixture("emptyempty.expected"); // spell-checker:disable-line
 }
 
-#[cfg_attr(not(feature = "test_unimplemented"), ignore)]
 #[test]
 fn output_delimiter() {
     new_ucmd!()