diff --git a/index.html b/index.html
index 8c084cf77..018d6d008 100644
--- a/index.html
+++ b/index.html
@@ -146,6 +146,7 @@
 
         <script src='locale/locale.js'></script>
         <script src='locale/en.js'></script>
+        <script src='locale/ja.js'></script>
         <script src='locale/fr.js'></script>
         <script src='locale/de.js'></script>
         <script src='locale/lv.js'></script>
diff --git a/locale/ja.js b/locale/ja.js
index 3f6455554..39f80122e 100644
--- a/locale/ja.js
+++ b/locale/ja.js
@@ -1,4 +1,4 @@
-locale.en = {
+locale.ja = {
     modes: {
         add_area: {
             title: "エリア",