diff --git a/tools/build/build.py b/tools/build/build.py
index 79965272..d9ab79b2 100755
--- a/tools/build/build.py
+++ b/tools/build/build.py
@@ -158,8 +158,8 @@ def build_oxjs(downloads=False, geo=False):
     write_file(build_path + 'Ox.UI/json/Ox.UI.files.json', files)
     files = json.dumps(sorted(ui_files['dev']), indent=4)
     write_file(dev_path + 'Ox.UI/json/Ox.UI.files.json', files)
-    
     ui_files['dev'].append('Ox.UI/Ox.UI.js')
+
     # index
     data = {
         # sum(list, []) is flatten
@@ -177,15 +177,15 @@ def build_oxjs(downloads=False, geo=False):
         'readme': map(
             lambda x: {
                 'date': time.strftime(
-                    '%Y-%m-%d %H:%M:%S',
-                    time.gmtime(os.path.getmtime(root_path + 'readme/html/' + x))
+                    '%Y-%m-%dT%H:%M:%SZ',
+                    time.gmtime(os.path.getmtime(root_path + 'readme/' + x))
                 ),
                 'id': x.split('.')[0],
-                'title': get_title(root_path + 'readme/html/' + x)
+                'title': get_title(root_path + 'readme/' + x)
             },
             filter(
-                lambda x: not re.search('^[._]', x),
-                os.listdir(root_path + 'readme/html/')
+                lambda x: not re.search('^[._]', x) and re.search('\.html$', x),
+                os.listdir(root_path + 'readme/')
             )
         )
     }