diff --git a/_config.yml b/_config.yml
index d1ae635bd..3067328b5 100644
--- a/_config.yml
+++ b/_config.yml
@@ -629,7 +629,7 @@ gitalk:
 # For more information: https://utteranc.es
 utterances:
   enable: false
-  repo: # Github repository name
+  repo: user-name/repo-name # Github repository owner and name
   # Available values: pathname | url | title | og:title
   issue_term: pathname
   # Available values: github-light | github-dark | preferred-color-scheme | github-dark-orange | icy-dark | dark-blue | photon-dark | boxy-light