diff --git a/public/language/ja/admin/advanced/database.json b/public/language/ja/admin/advanced/database.json
index 26f19fa233..5b9b0977f0 100644
--- a/public/language/ja/admin/advanced/database.json
+++ b/public/language/ja/admin/advanced/database.json
@@ -1,7 +1,7 @@
 {
 	"x-b": "%1 b",
 	"x-mb": "%1 mb",
-	"x-gb": "%1 gb",
+	"x-gb": "%1 GB",
 	"uptime-seconds": "秒単位の稼働時間",
 	"uptime-days": "日単位の稼働時間",