diff --git a/.gitignore b/.gitignore
index 839bb62..c3108dc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,7 @@
 .env
 pending.txt
 pending-backend.txt
-.DS_Store
\ No newline at end of file
+.DS_Store
+/build
+/demo-client
+/mongo
\ No newline at end of file
diff --git a/src/middlewares/isCollectionOwner.js b/src/middlewares/isCollectionOwner.js
index a95c6ca..917a21c 100644
--- a/src/middlewares/isCollectionOwner.js
+++ b/src/middlewares/isCollectionOwner.js
@@ -5,7 +5,7 @@ exports.isCollectionOwner = async (req, res, next) => {
   // console.log(collectionId);
   try {
     const { userId } = await Collection.findById(collectionId);
-    if (req.userId !== userId) {
+    if (req.userId.toString() !== userId.toString()) {
       return res.status(400).json({
         success: false,
         message: "You cannot edit, read, or add to this collection",
diff --git a/src/models/index.js b/src/models/index.js
index dbffdde..e4ebc6f 100644
--- a/src/models/index.js
+++ b/src/models/index.js
@@ -1,7 +1,7 @@
 const Collection = require('./collection');
 const Timeline = require('./timeline');
 const User = require('./user');
-const CollectionMapping = require('./CollectionMapping');
+const CollectionMapping = require('./collectionMapping');
 
 
 module.exports = {
@@ -9,4 +9,4 @@ module.exports = {
     Timeline : Timeline,
     User : User,
     CollectionMapping: CollectionMapping,
-}
\ No newline at end of file
+}