diff --git a/tests/by-util/test_ls.rs b/tests/by-util/test_ls.rs
index f3a5f279f..0893c3ffb 100644
--- a/tests/by-util/test_ls.rs
+++ b/tests/by-util/test_ls.rs
@@ -1958,11 +1958,10 @@ fn test_ls_group_directories_first() {
         .arg("--group-directories-first")
         .succeeds();
     assert_eq!(
-        result.stdout_str().split('\n').collect::<Vec<_>>(),
+        result.stdout_str().lines().collect::<Vec<_>>(),
         dots.into_iter()
             .chain(dirnames.into_iter())
             .chain(filenames.into_iter())
-            .chain([""].into_iter())
             .collect::<Vec<_>>(),
     );
 
@@ -1973,11 +1972,10 @@ fn test_ls_group_directories_first() {
         .arg("--sort=size")
         .succeeds();
     assert_eq!(
-        result.stdout_str().split('\n').collect::<Vec<_>>(),
+        result.stdout_str().lines().collect::<Vec<_>>(),
         dirnames
             .into_iter()
             .chain(filenames.into_iter().rev())
-            .chain([""].into_iter())
             .collect::<Vec<_>>()
     );
 
@@ -1987,13 +1985,12 @@ fn test_ls_group_directories_first() {
         .arg("--group-directories-first")
         .succeeds();
     assert_eq!(
-        result.stdout_str().split('\n').collect::<Vec<_>>(),
+        result.stdout_str().lines().collect::<Vec<_>>(),
         dirnames
             .into_iter()
             .rev()
             .chain(dots.into_iter().rev())
             .chain(filenames.into_iter().rev())
-            .chain([""].into_iter())
             .collect::<Vec<_>>(),
     );