diff --git a/src/models/forum_model.js b/src/models/forum_model.js
index b593e3b..df27060 100644
--- a/src/models/forum_model.js
+++ b/src/models/forum_model.js
@@ -503,8 +503,7 @@ module.exports = ({ cooler, tribeCrypto, forumCrypto }) => {
           text: c.text,
           author: c.author,
           timestamp: m.value.timestamp,
-          parent: c.branch || null,
-          subtopic: c.subtopic || null
+          parent: c.branch || null
         }));
       for (let r of replies) {
         const { positives: rp, negatives: rn } = await aggregateVotes(ssbClient, r.key);