diff --git a/framework/core/js/forum/src/components/DiscussionPage.js b/framework/core/js/forum/src/components/DiscussionPage.js
index bc73a8a46..771004b17 100644
--- a/framework/core/js/forum/src/components/DiscussionPage.js
+++ b/framework/core/js/forum/src/components/DiscussionPage.js
@@ -172,8 +172,13 @@ export default class DiscussionPage extends Page {
     // the 'discussion' relationship linked, then sorting and splicing.
     let includedPosts = [];
     if (discussion.payload && discussion.payload.included) {
+      const discussionId = discussion.id();
+
       includedPosts = discussion.payload.included
-        .filter(record => record.type === 'posts' && record.relationships && record.relationships.discussion)
+        .filter(record => record.type === 'posts'
+          && record.relationships
+          && record.relationships.discussion
+          && record.relationships.discussion.data.id === discussionId)
         .map(record => app.store.getById('posts', record.id))
         .sort((a, b) => a.id() - b.id())
         .slice(0, 20);