diff --git a/_config.yml b/_config.yml
index 73fa3928f..5a72b3fcd 100644
--- a/_config.yml
+++ b/_config.yml
@@ -149,3 +149,10 @@ social:
 
 sass:
   style: compressed
+
+comments:
+  provider: "utterances"
+  utterances:
+    theme: "github-light" # "github-dark"
+    issue_term: "pathname"
+    label: "comment" # Optional - must be existing label.