diff --git a/l10n/.tx/config b/l10n/.tx/config
index 2dd2a24b..093c9789 100644
--- a/l10n/.tx/config
+++ b/l10n/.tx/config
@@ -1,5 +1,7 @@
 [main]
 host = https://www.transifex.com
+lang_map = ja_JP: ja
+
 
 [owncloud.documents]
 file_filter = <lang>/documents.po