diff --git a/dvc/ui/__init__.py b/dvc/ui/__init__.py
index edc40479a..c0466329f 100644
--- a/dvc/ui/__init__.py
+++ b/dvc/ui/__init__.py
@@ -270,7 +270,9 @@ class Console:
 
         path = Path(file).resolve()
         url = (
-            relpath(path) if "Microsoft" in uname().release else path.as_uri()
+            relpath(path)
+            if "microsoft" in uname().release.lower()
+            else path.as_uri()
         )
 
         opened = webbrowser.open(url)
diff --git a/tests/unit/command/test_plots.py b/tests/unit/command/test_plots.py
index 6165373b4..9d007c3fb 100644
--- a/tests/unit/command/test_plots.py
+++ b/tests/unit/command/test_plots.py
@@ -178,7 +178,7 @@ def test_plots_diff_open(tmp_dir, dvc, mocker, capsys, plots_data, auto_open):
 def test_plots_diff_open_WSL(tmp_dir, dvc, mocker, plots_data):
     mocked_open = mocker.patch("webbrowser.open", return_value=True)
     mocked_uname_result = mocker.MagicMock()
-    mocked_uname_result.release = "Microsoft"
+    mocked_uname_result.release = "microsoft"
     mocker.patch("platform.uname", return_value=mocked_uname_result)
 
     cli_args = parse_args(