diff --git a/helpers/url_test.go b/helpers/url_test.go
index 787cdd6e851..bb7f6eed747 100644
--- a/helpers/url_test.go
+++ b/helpers/url_test.go
@@ -149,7 +149,7 @@ func TestRelURL(t *testing.T) {
 	}
 }
 
-func doTestRelURL(t *testing.T, defaultInSubDir, addLanguage, multilingual bool, lang string) {
+func doTestRelURL(t testing.TB, defaultInSubDir, addLanguage, multilingual bool, lang string) {
 	t.Helper()
 	c := qt.New(t)
 	v := config.New()
@@ -262,3 +262,13 @@ func TestSanitizeURL(t *testing.T) {
 		}
 	}
 }
+
+func BenchmarkRelURL(b *testing.B) {
+	v := config.New()
+	v.Set("baseURL", "http://base/")
+	p := newTestPathSpecFromCfgAndLang(v, "")
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		_ = p.RelURL("https://base/foo/bar", false)
+	}
+}