diff --git a/test/document.test.js b/test/document.test.js
index f2e2cd5227a..6a9c50c13c1 100644
--- a/test/document.test.js
+++ b/test/document.test.js
@@ -9932,7 +9932,6 @@ describe('document', function() {
     });
   });
   it('Makes sure pre remove hook is executed gh-9885', function() {
-    const tracker = new assert.CallTracker();
     const SubSchema = new Schema({
       myValue: {
         type: String
@@ -9952,22 +9951,22 @@ describe('document', function() {
         type: [SubSchema],
         required: true
       }
-    }, {minimize: false, collection: 'test'});
+    }, { minimize: false, collection: 'test' });
 
-    const Model = db.model('TestModel',thisSchema);
+    const Model = db.model('TestModel', thisSchema);
 
     return co(function*() {
       yield Model.deleteMany({}); // remove all existing documents
       const newModel = {
         foo: 'bar',
-        mySubdoc: [{myValue: 'some value'}]
+        mySubdoc: [{ myValue: 'some value' }]
       };
       const document = yield Model.create(newModel);
       document.mySubdoc[0].remove();
       yield document.save().catch((error) => {
         console.error(error);
       });
-      assert.equal(count,1);
+      assert.equal(count, 1);
     });
   });
 });