diff --git a/tests/ref/basic.list b/tests/ref/basic.list
index 8e762987913..b40c2878c8a 100644
--- a/tests/ref/basic.list
+++ b/tests/ref/basic.list
@@ -11,7 +11,6 @@ fragment=top != ../html/acid2.html acid2_ref.html
 
 == acid1_a.html acid1_b.html
 == acid2_noscroll.html acid2_ref_broken.html
-== after_block_iteration.html after_block_iteration_ref.html
 == alpha_gif_a.html alpha_gif_b.html
 == alpha_png_a.html alpha_png_b.html
 == anon_block_inherit_a.html anon_block_inherit_b.html
diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index 2d01cb0cbb1..d5d417a0881 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -123,6 +123,18 @@
             "url": "/_mozilla/css/absolute_z_index_auto_paint_order_a.html"
           }
         ],
+        "css/after_block_iteration.html": [
+          {
+            "path": "css/after_block_iteration.html",
+            "references": [
+              [
+                "/_mozilla/css/after_block_iteration_ref.html",
+                "=="
+              ]
+            ],
+            "url": "/_mozilla/css/after_block_iteration.html"
+          }
+        ],
         "css/background.html": [
           {
             "path": "css/background.html",
@@ -1040,6 +1052,18 @@
           "url": "/_mozilla/css/absolute_z_index_auto_paint_order_a.html"
         }
       ],
+      "css/after_block_iteration.html": [
+        {
+          "path": "css/after_block_iteration.html",
+          "references": [
+            [
+              "/_mozilla/css/after_block_iteration_ref.html",
+              "=="
+            ]
+          ],
+          "url": "/_mozilla/css/after_block_iteration.html"
+        }
+      ],
       "css/background.html": [
         {
           "path": "css/background.html",
diff --git a/tests/ref/after_block_iteration.html b/tests/wpt/mozilla/tests/css/after_block_iteration.html
similarity index 90%
rename from tests/ref/after_block_iteration.html
rename to tests/wpt/mozilla/tests/css/after_block_iteration.html
index 12c67f80b1f..79efcc13723 100644
--- a/tests/ref/after_block_iteration.html
+++ b/tests/wpt/mozilla/tests/css/after_block_iteration.html
@@ -8,6 +8,7 @@
   corrupted.
 -->
 <title>ack</title>
+<link rel=match href=after_block_iteration_ref.html>
 <style>
 div.after-portlet-lang:after {
     display: block;
diff --git a/tests/ref/after_block_iteration_ref.html b/tests/wpt/mozilla/tests/css/after_block_iteration_ref.html
similarity index 100%
rename from tests/ref/after_block_iteration_ref.html
rename to tests/wpt/mozilla/tests/css/after_block_iteration_ref.html