diff --git a/tests/ref/basic.list b/tests/ref/basic.list
index c70c9df3521..da230fa57f9 100644
--- a/tests/ref/basic.list
+++ b/tests/ref/basic.list
@@ -12,7 +12,6 @@ fragment=top != ../html/acid2.html acid2_ref.html
== acid1_a.html acid1_b.html
== acid2_noscroll.html acid2_ref_broken.html
flaky_cpu == append_style_a.html append_style_b.html
-== background_image_a.html background_image_ref.html
== background_image_position_a.html background_image_position_ref.html
== background_none_a.html background_none_b.html
== background_origin_a.html background_origin_ref.html
diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index 11039509443..69805711570 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -231,6 +231,18 @@
"url": "/_mozilla/css/background_external_stylesheet.html"
}
],
+ "css/background_image_a.html": [
+ {
+ "path": "css/background_image_a.html",
+ "references": [
+ [
+ "/_mozilla/css/background_image_ref.html",
+ "=="
+ ]
+ ],
+ "url": "/_mozilla/css/background_image_a.html"
+ }
+ ],
"css/class-namespaces.html": [
{
"path": "css/class-namespaces.html",
@@ -1244,6 +1256,18 @@
"url": "/_mozilla/css/background_external_stylesheet.html"
}
],
+ "css/background_image_a.html": [
+ {
+ "path": "css/background_image_a.html",
+ "references": [
+ [
+ "/_mozilla/css/background_image_ref.html",
+ "=="
+ ]
+ ],
+ "url": "/_mozilla/css/background_image_a.html"
+ }
+ ],
"css/class-namespaces.html": [
{
"path": "css/class-namespaces.html",
diff --git a/tests/ref/background_image_a.html b/tests/wpt/mozilla/tests/css/background_image_a.html
similarity index 85%
rename from tests/ref/background_image_a.html
rename to tests/wpt/mozilla/tests/css/background_image_a.html
index bb7b0434d07..37afc14ca0c 100644
--- a/tests/ref/background_image_a.html
+++ b/tests/wpt/mozilla/tests/css/background_image_a.html
@@ -1,6 +1,7 @@
+