diff --git a/tests/test_io.py b/tests/test_io.py
index 26a032c..09ceb9a 100644
--- a/tests/test_io.py
+++ b/tests/test_io.py
@@ -118,10 +118,10 @@ def test_bed_writer_write_comment_with_prefix_pound_symbol(tmp_path: Path) -> No
         writer = BedWriter[Bed2](handle)
         writer.write_comment("# hello mom!")
         writer.write(Bed2(refname="chr1", start=1))
-        writer.write_comment("# hello dad!")
+        writer.write_comment("# hello\ndad!")
         writer.write(Bed2(refname="chr2", start=2))
 
-    expected = "# hello mom!\nchr1\t1\n# hello dad!\nchr2\t2\n"
+    expected = "# hello mom!\nchr1\t1\n# hello\n# dad!\nchr2\t2\n"
     assert Path(tmp_path / "test.bed").read_text() == expected
 
 
@@ -131,7 +131,7 @@ def test_bed_writer_write_comment_without_prefix_pound_symbol(tmp_path: Path) ->
         writer = BedWriter[Bed2](handle)
         writer.write_comment("track this-is-fine")
         writer.write_comment("browser is mario's enemy?")
-        writer.write_comment("hello mom!")
+        writer.write_comment("hello\nmom!")
         writer.write(Bed2(refname="chr1", start=1))
         writer.write_comment("hello dad!")
         writer.write(Bed2(refname="chr2", start=2))
@@ -139,7 +139,8 @@ def test_bed_writer_write_comment_without_prefix_pound_symbol(tmp_path: Path) ->
     expected = (
         "track this-is-fine\n"
         "browser is mario's enemy?\n"
-        "# hello mom!\n"
+        "# hello\n"
+        "# mom!\n"
         "chr1\t1\n"
         "# hello dad!\n"
         "chr2\t2\n"
@@ -206,7 +207,7 @@ def test_bed_reader_can_read_bed_records_with_comments(tmp_path: Path) -> None:
 
     with open(tmp_path / "test.bed", "w") as handle:
         writer: BedWriter = BedWriter(handle)
-        writer.write_comment("track this-is-fine")
+        writer.write_comment("track\nthis-is-fine")
         writer.write_comment("browser is mario's enemy?")
         writer.write_comment("hello mom!")
         handle.write("\n")  # empty line