diff --git a/tests/ref/basic.list b/tests/ref/basic.list
index 0ca45289d1a..25811913d2f 100644
--- a/tests/ref/basic.list
+++ b/tests/ref/basic.list
@@ -189,7 +189,6 @@ flaky_cpu == linebreak_simple_a.html linebreak_simple_b.html
== no_image_background_a.html no_image_background_ref.html
!= noteq_attr_exists_selector.html attr_exists_selector_ref.html
== nth_last_of_type_pseudo_a.html nth_last_of_type_pseudo_b.html
-== nth_of_type_pseudo_a.html nth_of_type_pseudo_b.html
!= octicons_a.html octicons_ref.html
== ol_japanese_iroha_a.html ol_japanese_iroha_ref.html
!= ol_japanese_iroha_bullet_styles.html ol_japanese_iroha_ref.html
diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index 190fefd07d9..a0b8ef8fe92 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -911,6 +911,18 @@
"url": "/_mozilla/css/nth_last_child_pseudo_a.html"
}
],
+ "css/nth_of_type_pseudo_a.html": [
+ {
+ "path": "css/nth_of_type_pseudo_a.html",
+ "references": [
+ [
+ "/_mozilla/css/nth_of_type_pseudo_b.html",
+ "=="
+ ]
+ ],
+ "url": "/_mozilla/css/nth_of_type_pseudo_a.html"
+ }
+ ],
"css/object_element_a.html": [
{
"path": "css/object_element_a.html",
@@ -4044,6 +4056,18 @@
"url": "/_mozilla/css/nth_last_child_pseudo_a.html"
}
],
+ "css/nth_of_type_pseudo_a.html": [
+ {
+ "path": "css/nth_of_type_pseudo_a.html",
+ "references": [
+ [
+ "/_mozilla/css/nth_of_type_pseudo_b.html",
+ "=="
+ ]
+ ],
+ "url": "/_mozilla/css/nth_of_type_pseudo_a.html"
+ }
+ ],
"css/object_element_a.html": [
{
"path": "css/object_element_a.html",
diff --git a/tests/ref/nth_of_type_pseudo_a.html b/tests/wpt/mozilla/tests/css/nth_of_type_pseudo_a.html
similarity index 98%
rename from tests/ref/nth_of_type_pseudo_a.html
rename to tests/wpt/mozilla/tests/css/nth_of_type_pseudo_a.html
index dfeecdb3afe..f3020e01d5b 100644
--- a/tests/ref/nth_of_type_pseudo_a.html
+++ b/tests/wpt/mozilla/tests/css/nth_of_type_pseudo_a.html
@@ -1,6 +1,7 @@
+
:nth-of-type test