diff --git a/.wallaby.js b/.wallaby.js
index 59083bb5f4..62573c2f97 100644
--- a/.wallaby.js
+++ b/.wallaby.js
@@ -17,7 +17,8 @@ module.exports = () => {
       },
       'package.json',
       'test/opts/mocha.opts',
-      'mocharc.yml'
+      'mocharc.yml',
+      '!lib/browser/growl.js'
     ],
     filesWithNoCoverageCalculated: [
       'test/**/*.fixture.js',
diff --git a/lib/hook.js b/lib/hook.js
index 8ccbd4947f..890086fad2 100644
--- a/lib/hook.js
+++ b/lib/hook.js
@@ -78,7 +78,6 @@ Hook.prototype.serialize = function serialize() {
     },
     title: this.title,
     type: this.type,
-    [MOCHA_ID_PROP_NAME]: this.id,
-    __mocha_partial__: true
+    [MOCHA_ID_PROP_NAME]: this.id
   };
 };