diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index 84ee34bda2f..94d37f77da9 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -555945,7 +555945,7 @@
    "testharness"
   ],
   "dom/nodes/selectors.js": [
-   "019ceba60eaa07690fa3922995f53e65725d7f95",
+   "d1ef389316e4d788cffa04b920821b99a5777c2d",
    "support"
   ],
   "dom/ranges/Range-attributes.html": [
diff --git a/tests/wpt/web-platform-tests/dom/nodes/selectors.js b/tests/wpt/web-platform-tests/dom/nodes/selectors.js
index ac722a6fe04..0383660dda8 100644
--- a/tests/wpt/web-platform-tests/dom/nodes/selectors.js
+++ b/tests/wpt/web-platform-tests/dom/nodes/selectors.js
@@ -37,6 +37,7 @@ var invalidSelectors = [
   {name: "Unknown pseudo-element",       selector: "div::example"},
   {name: "Unknown pseudo-element",       selector: "::example"},
   {name: "Invalid pseudo-element",       selector: ":::before"},
+  {name: "Invalid pseudo-element",       selector: ":: before"},
   {name: "Undeclared namespace",         selector: "ns|div"},
   {name: "Undeclared namespace",         selector: ":not(ns|div)"},
   {name: "Invalid namespace",            selector: "^|div"},