diff --git a/tests/ref/basic.list b/tests/ref/basic.list
index 8f2e032812d..92e89eb909f 100644
--- a/tests/ref/basic.list
+++ b/tests/ref/basic.list
@@ -350,7 +350,6 @@ flaky_cpu,prefs:"layout.writing-mode.enabled" == vertical-lr-blocks.html vertica
== vertical_align_inline_block_a.html vertical_align_inline_block_ref.html
== vertical_align_inside_table_a.html vertical_align_inside_table_ref.html
== vertical_align_sub_a.html vertical_align_sub_ref.html
-== vertical_align_super_a.html vertical_align_super_ref.html
== viewport_meta.html viewport_rule_ref.html
resolution=800x600 == viewport_percentage_vmin_vmax.html viewport_percentage_vmin_vmax_a.html
# resolution=600x800 == viewport_percentage_vmin_vmax.html viewport_percentage_vmin_vmax_b.html
diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index a4ae96de7ca..30aa61c88f1 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -663,6 +663,18 @@
"url": "/_mozilla/css/upper_id_attr.html"
}
],
+ "css/vertical_align_super_a.html": [
+ {
+ "path": "css/vertical_align_super_a.html",
+ "references": [
+ [
+ "/_mozilla/css/vertical_align_super_ref.html",
+ "=="
+ ]
+ ],
+ "url": "/_mozilla/css/vertical_align_super_a.html"
+ }
+ ],
"css/vertical_align_super_nested_a.html": [
{
"path": "css/vertical_align_super_nested_a.html",
@@ -2144,6 +2156,18 @@
"url": "/_mozilla/css/upper_id_attr.html"
}
],
+ "css/vertical_align_super_a.html": [
+ {
+ "path": "css/vertical_align_super_a.html",
+ "references": [
+ [
+ "/_mozilla/css/vertical_align_super_ref.html",
+ "=="
+ ]
+ ],
+ "url": "/_mozilla/css/vertical_align_super_a.html"
+ }
+ ],
"css/vertical_align_super_nested_a.html": [
{
"path": "css/vertical_align_super_nested_a.html",
diff --git a/tests/ref/vertical_align_super_a.html b/tests/wpt/mozilla/tests/css/vertical_align_super_a.html
similarity index 90%
rename from tests/ref/vertical_align_super_a.html
rename to tests/wpt/mozilla/tests/css/vertical_align_super_a.html
index e64fed1aefe..c1780235b83 100644
--- a/tests/ref/vertical_align_super_a.html
+++ b/tests/wpt/mozilla/tests/css/vertical_align_super_a.html
@@ -1,6 +1,7 @@
+