diff --git a/_config.yml b/_config.yml
index c05aaf9f3cb7ecae176b7f7baf8c038bfaceabe9..c22c671b2033475ed67f0872e344bab32b052286 100644
--- a/_config.yml
+++ b/_config.yml
@@ -28,6 +28,8 @@ color_scheme: light
 search_enabled: false
 heading_anchors: true
 permalink: pretty
+back_to_top: true
+back_to_top_text: "Back to top"
 footer_content: 'Kevin Lin &copy; 2021 <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/">CC BY-NC-SA 4.0</a>'
 
 # Collections for website data