diff --git a/test/dict/CharacterDefinitionTest.js b/test/dict/CharacterDefinitionTest.js
index <HASH>..<HASH> 100644
--- a/test/dict/CharacterDefinitionTest.js
+++ b/test/dict/CharacterDefinitionTest.js
@@ -19,18 +19,15 @@ var CharacterDefinition = require("../../src/dict/CharacterDefinition.js");
 var InvokeDefinitionMap = require("../../src/dict/InvokeDefinitionMap.js");
 
 var fs = require("fs");
-var jconv = require("jconv");
 var expect = require("chai").expect;
 
 var DIC_DIR = "test/resource/minimum-dic/";
-var ENCODING = "EUCJP";
-
 
 describe("CharacterDefinition from char.def", function () {
     var char_def;  // target object
 
     before("Create CharacterDefinition", function (done) {
-        var text = readFile(DIC_DIR + "char.def");
+        var text = fs.readFileSync(DIC_DIR + "char.def", "utf-8");
         char_def = CharacterDefinition.readCharacterDefinition(text);
         done();
     });
@@ -129,10 +126,3 @@ describe("CharacterDefinition from char.def", function () {
         });
     });
 });
-
-
-var readFile = function(filename) {
-    var text = fs.readFileSync(filename);
-    text = jconv.decode(text, ENCODING);
-    return text;
-};
test(dic): stop to use jconv