diff --git a/lib/publish.js b/lib/publish.js
index a1acd33..6640a79 100644
--- a/lib/publish.js
+++ b/lib/publish.js
@@ -5,7 +5,16 @@ import { check } from 'meteor/check';
 import { Cache } from './cache';
 import { config } from './config';
 import { actions } from './mongo';
-import { getCursor, formatId, convertFilter, buildProjection, removeValue, overrideLowLevelPublishAPI, mergeDocIntoFetchResult } from './utils/server';
+import {
+  getCursor,
+  formatId,
+  convertFilter,
+  convertObjectId,
+  buildProjection,
+  removeValue,
+  overrideLowLevelPublishAPI,
+  mergeDocIntoFetchResult,
+} from './utils/server';
 import { isEmpty, createKey } from './utils/shared';
 
 let onces = [];
@@ -127,7 +136,7 @@ function publishOnce(name, handler) {
 // change streams
 const formatDoc = streamDoc => {
   const _id = formatId(streamDoc.documentKey._id);
-  const doc = streamDoc.fullDocument || {};
+  const doc = convertObjectId(streamDoc.fullDocument) || {};
   doc._id = _id;
 
   if (streamDoc.operationType !== 'update') {
diff --git a/lib/utils/server.js b/lib/utils/server.js
index f92fda6..76a0e2f 100644
--- a/lib/utils/server.js
+++ b/lib/utils/server.js
@@ -144,7 +144,9 @@ export const convertFilter = filter => {
       if (key === '$or' || key === '$and' || key === '$nor') {
         result[key] = convertFilter(filter[key]);
       } else {
-        result[`fullDocument.${key}`] = filter[key];
+        result[`fullDocument.${key}`] = filter[key]._str
+          ? new ObjectId(filter[key]._str)
+          : filter[key];
       }
     }
     return result;
diff --git a/tests.js b/tests.js
index 5875aa3..6af63e8 100644
--- a/tests.js
+++ b/tests.js
@@ -28,6 +28,9 @@ const Notes = new Mongo.Collection('notes');
 const Items = new Mongo.Collection('items');
 const Books = new Mongo.Collection('books');
 const Dogs = new Mongo.Collection('dogs');
+const Cats = new Mongo.Collection('cats', {
+  idGeneration: 'MONGO' // Mongo.ObjectID
+});
 const Markers = new Mongo.Collection('markers', {
   idGeneration: 'MONGO' // Mongo.ObjectID
 });
@@ -73,6 +76,17 @@ const resetDogs = async () => {
   return;
 }
 
+const resetCats = async () => {
+  await Cats.removeAsync({});
+  await Cats.insertAsync({ name: 'fluffy', something: new Mongo.ObjectID('123456789012345678901234') });
+  await Cats.insertAsync({ name: 'Phantom', something: new Mongo.ObjectID('123456789012345678901234') });
+  await Cats.insertAsync({
+    name: 'Mittens',
+    something: new Mongo.ObjectID('012341234567890123456789'),
+  });
+  return;
+}
+
 const insertThing = async ({ text, num }) => {
   return Things.insertAsync({ text, num });
 }
@@ -149,6 +163,10 @@ const insertDog = async ({ text }) => {
   return Dogs.insertAsync({ text, ...(Meteor.isServer && { something: 1 }) });
 }
 
+const insertCat = async ({ name, id }) => {
+  return Cats.insertAsync({ name, something: id });
+}
+
 const updateDog = async ({ _id, text }) => {
   return Dogs.updateAsync({ _id }, { $set: { text, ...(Meteor.isServer && { something: 2 }) }});
 }
@@ -169,6 +187,7 @@ if (Meteor.isServer) {
     await resetBooks();
     await resetMarkers();
     await resetDogs();
+    await resetCats();
   })
 
   Meteor.publish('notes.all', function() {
@@ -219,11 +238,15 @@ if (Meteor.isServer) {
     return Dogs.find({}, { fields: { text: 1 }});
   });
 
-  Meteor.methods({ reset, resetNotes, resetItems, resetBooks, resetMarkers, resetDogs, updateThing, updateThingWithUnset, updateThings, updateThingsWithUnset, updateThingUpsert, updateThingUpsertMulti, upsertThing, replaceThing, removeThing, fetchThings, updateItem, fetchItems })
+  Meteor.publish.stream('cats.stream.something', function(filterObjectId) {
+    return Cats.find({something: filterObjectId}, { fields: { name: 1, something: 1 }});
+  });
+
+  Meteor.methods({ reset, resetNotes, resetItems, resetBooks, resetMarkers, resetDogs, resetCats, updateThing, updateThingWithUnset, updateThings, updateThingsWithUnset, updateThingUpsert, updateThingUpsertMulti, upsertThing, replaceThing, removeThing, fetchThings, updateItem, fetchItems })
 }
 
 // isomorphic methods
-Meteor.methods({ insertThing, insertItem, insertBook, insertMarker, updateMarker, updateMarkers, insertDog, updateDog, replaceDog, removeDog });
+Meteor.methods({ insertThing, insertItem, insertBook, insertMarker, updateMarker, updateMarkers, insertDog, updateDog, insertCat, replaceDog, removeDog });
 
 
 function createConnection() {
@@ -1070,6 +1093,38 @@ if (Meteor.isClient) {
     computation.stop();
   });
 
+   Tinytest.addAsync(
+     'subscribe - .stream - successful with Mongo.ObjectID as a filter',
+     async (test) => {
+       await Meteor.callAsync('resetCats');
+
+       let sub;
+       Tracker.autorun(() => {
+         sub = Meteor.subscribe('cats.stream.something', new Mongo.ObjectID('123456789012345678901234'), { cacheDuration: 0.1 });
+       });
+
+       let cats;
+       const computation = Tracker.autorun(() => {
+         if (sub.ready()) {
+           cats = Cats.find().fetch();
+           sub.stop();
+         }
+       });
+
+      
+
+       await wait(101);
+        console.log('cats', cats);
+       test.equal(cats.length, 2);
+
+       await Meteor.callAsync('insertCat', { name: 'sup', id: new Mongo.ObjectID('123456789012345678901234') });
+       await wait(100);
+       test.equal(cats.length, 3);
+
+       computation.stop();
+     }
+   );
+
 
   Tinytest.addAsync('cache - regular pubsub -  successful', async (test) => {
     let sub;