1 files changed, 4 insertions, 3 deletions
diff --git a/lib/api/encodeGlobal.js b/lib/api/encodeGlobal.js
index 073bc13..89cea59 100644
--- a/lib/api/encodeGlobal.js
+++ b/lib/api/encodeGlobal.js
@@ -1,5 +1,6 @@
 var Promise = require('../utils/promise');
 var PathUtils = require('../utils/path');
+var fs = require('../utils/fs');
 
 var deprecate = require('./deprecate');
 var encodeConfig = require('./encodeConfig');
@@ -15,7 +16,7 @@ var fileToURL = require('../output/helper/fileToURL');
 */
 function encodeGlobal(output) {
     var book = output.getBook();
-    var fs = book.getContentFS();
+    var bookFS = book.getContentFS();
     var logger = output.getLogger();
     var outputFolder = output.getRoot();
 
@@ -42,7 +43,7 @@ function encodeGlobal(output) {
             @return {Promise<Buffer>}
         */
         readFile: function(fileName) {
-            return fs.read(fileName);
+            return bookFS.read(fileName);
         },
 
         /**
@@ -52,7 +53,7 @@ function encodeGlobal(output) {
             @return {Promise<String>}
         */
         readFileAsString: function(fileName) {
-            return fs.readAsString(fileName);
+            return bookFS.readAsString(fileName);
         },
 
         output: {