diff --git a/_config.yml b/_config.yml
index fb8fb32..370886b 100644
--- a/_config.yml
+++ b/_config.yml
@@ -115,7 +115,8 @@ paginate: 10
 # The base URL of your site
 baseurl: ""
 
-
+gems:
+  - jekyll-sitemap
 
 # ------------ The following options are not recommended to be modified ------------------