diff --git a/r2/r2/models/builder.py b/r2/r2/models/builder.py
index 9671602a5..961ba0d89 100755
--- a/r2/r2/models/builder.py
+++ b/r2/r2/models/builder.py
@@ -780,6 +780,7 @@ class CommentBuilder(Builder):
                                               parent_id=parent_id))
                 else:
                     w = more_recursions[parent_id]
+                w.children.append(comment_id)
                 more_recursions[parent_id] = w
 
         timer.intermediate("pick_comments")