1 files changed, 8 insertions, 0 deletions
diff --git a/lib/output/json/onPage.js b/lib/output/json/onPage.js
index 54179c6..c2ee0d0 100644
--- a/lib/output/json/onPage.js
+++ b/lib/output/json/onPage.js
@@ -4,6 +4,8 @@ var Modifiers = require('../modifiers');
 var writeFile = require('../helper/writeFile');
 var getModifiers = require('../getModifiers');
 
+var JSON_VERSION = '3';
+
 /**
     Write a page as a json file
 
@@ -18,6 +20,12 @@ function onPage(output, page) {
         // Generate the JSON
         var json = JSONUtils.encodeBookWithPage(output.getBook(), resultPage);
 
+        // Delete some private properties
+        delete json.config;
+
+        // Specify JSON output version
+        json.version = JSON_VERSION;
+
         // File path in the output folder
         var filePath = PathUtils.setExtension(file.getPath(), '.json');