diff --git a/vi-vn/less-vi.html.markdown b/vi-vn/less-vi.html.markdown
index 73940592..f861fb0e 100644
--- a/vi-vn/less-vi.html.markdown
+++ b/vi-vn/less-vi.html.markdown
@@ -4,7 +4,7 @@ contributors:
   - ["Saravanan Ganesh", "http://srrvnn.me"]
 translators:
     - ["Thanh Duy Phan", "https://github.com/thanhpd"]
-filename: learnless-vi.ts
+filename: learnless-vi.less
 lang: vi-vn
 ---