diff --git a/DeDRM_calibre_plugin/DeDRM_plugin/convert2xml.py b/DeDRM_calibre_plugin/DeDRM_plugin/convert2xml.py
index bbb7b04..443dd82 100644
--- a/DeDRM_calibre_plugin/DeDRM_plugin/convert2xml.py
+++ b/DeDRM_calibre_plugin/DeDRM_plugin/convert2xml.py
@@ -317,11 +317,16 @@ class PageParser(object):
         'span.gridBeginCenter' : (1, 'scalar_number', 0, 0),
         'span.gridEndCenter' : (1, 'scalar_number', 0, 0),
 
-        'extratokens'            : (1, 'snippets', 1, 0),
-        'extratokens.class'      : (1, 'scalar_text', 0, 0),
-        'extratokens.type'       : (1, 'scalar_text', 0, 0),
-        'extratokens.firstGlyph' : (1, 'scalar_number', 0, 0),
-        'extratokens.lastGlyph'  : (1, 'scalar_number', 0, 0),
+        'extratokens'                   : (1, 'snippets', 1, 0),
+        'extratokens.class'             : (1, 'scalar_text', 0, 0),
+        'extratokens.type'              : (1, 'scalar_text', 0, 0),
+        'extratokens.firstGlyph'        : (1, 'scalar_number', 0, 0),
+        'extratokens.lastGlyph'         : (1, 'scalar_number', 0, 0),
+        'extratokens.gridSize'          : (1, 'scalar_number', 0, 0),
+        'extratokens.gridBottomCenter'  : (1, 'scalar_number', 0, 0),
+        'extratokens.gridTopCenter'     : (1, 'scalar_number', 0, 0),
+        'extratokens.gridBeginCenter'   : (1, 'scalar_number', 0, 0),
+        'extratokens.gridEndCenter'     : (1, 'scalar_number', 0, 0),
 
         'glyph.h'      : (1, 'number', 0, 0),
         'glyph.w'      : (1, 'number', 0, 0),