diff --git a/t/05_utils.t b/t/05_utils.t
index 3612a5f..fac5f55 100644
--- a/t/05_utils.t
+++ b/t/05_utils.t
@@ -106,6 +106,11 @@ subtest 'sanitize_url' => sub {
             'https://example.com/~user/docs',
             'unescapes multiple percent-encoded segments'
         ],
+        [
+            'https://fr.wikipedia.org/wiki/Pic_L%C3%A9nine',
+            'https://fr.wikipedia.org/wiki/Pic_L%C3%A9nine',
+            'preserves UTF-8 percent-encoded path'
+        ],
         [
             'https://example.com?q=hello%20world',
             'https://example.com?q=hello%20world',