diff --git a/docs/supportedsites.md b/docs/supportedsites.md
index dc0354095..dba8210c5 100644
--- a/docs/supportedsites.md
+++ b/docs/supportedsites.md
@@ -220,6 +220,7 @@
  - **imdb:list**: Internet Movie Database lists
  - **Imgur**
  - **ImgurAlbum**
+ - **Imooc**: 慕课网
  - **Ina**
  - **Indavideo**
  - **IndavideoEmbed**