diff --git a/tests/topotests/pytest.ini b/tests/topotests/pytest.ini
index 7dd13935b1..6986e3051c 100644
--- a/tests/topotests/pytest.ini
+++ b/tests/topotests/pytest.ini
@@ -46,6 +46,7 @@ markers =
 	pathd: Tests that run against PATHD
 	pbrd: Tests that run against PBRD
 	pimd: Tests that run against PIMD
+	pim6d: Tests that run against PIM6D
 	ripd: Tests that run against RIPD
 	ripngd: Tests that run against RIPNGD
 	sharpd: Tests that run against SHARPD