diff --git a/lib/natural/tokenizers/tokenizer_ja.js b/lib/natural/tokenizers/tokenizer_ja.js
index <HASH>..<HASH> 100644
--- a/lib/natural/tokenizers/tokenizer_ja.js
+++ b/lib/natural/tokenizers/tokenizer_ja.js
@@ -68,10 +68,10 @@ var Tokenizer = require('./tokenizer'),
  */
 var TokenizerJa = function() {
   this.chartype_ = [
-    [/[一二三四五六七八九十百千万億兆]/, 'M'],
-    [/[一-龠〆ヵヶ]/, 'H'],
-    [/[ぁ-ゔ]/, 'I'],
-    [/[ァ-ヴー]/, 'K'],
+    [/[〇一二三四五六七八九十百千万億兆]/, 'M'],
+    [/[一-龠〆]/, 'H'],
+    [/[ぁ-ゖ]/, 'I'],
+    [/[ァ-ヶー]/, 'K'],
     [/[a-zA-Z]/, 'A'],
     [/[0-9]/, 'N']
   ];
Harmonize regexp with normalizer and add missing characters