diff --git a/ci/reviews.js b/ci/reviews.js
index 3e8e07976a..25ef08be36 100644
--- a/ci/reviews.js
+++ b/ci/reviews.js
@@ -17,10 +17,18 @@ module.exports = async ({github, context}) => {
     reviewers.add("jamessan")
   }
 
+  if (labels.includes('column')) {
+    reviewers.add("lewis6991")
+  }
+
   if (labels.includes('diagnostic')) {
     reviewers.add("gpanders")
   }
 
+  if (labels.includes('diff')) {
+    reviewers.add("lewis6991")
+  }
+
   if (labels.includes('distribution')) {
     reviewers.add("jamessan")
   }