diff --git a/renderer.js b/renderer.js
index dc92149..9f859d2 100644
--- a/renderer.js
+++ b/renderer.js
@@ -5,8 +5,7 @@ const uuid = require('uuid');
 const {getDirPath, getDocPath} = require('./utils');
 
 
-function copyToTemp(texDocument, callback) {
-    const id = uuid.v1();
+function copyToTemp(id, texDocument, callback) {
     const dirPath = getDirPath(id);
 
     fs.mkdir(dirPath, (err) => {
@@ -20,7 +19,7 @@ function copyToTemp(texDocument, callback) {
             if (err) {
                 callback(err);
             }
-            callback(null, id);
+            callback(null);
         });
     });
 }
@@ -42,7 +41,12 @@ function generateDoc(id, callback) {
 }
 
 module.exports = (texDocument, callback) => {
-    copyToTemp(texDocument, (err, id) => {
+    const id = uuid.v1();
+    copyToTemp(id, texDocument, (err) => {
+        if (err) {
+            callback(err);
+            return;
+        }
         generateDoc(id, callback);
     });
 };