diff --git a/lib/topic_view.rb b/lib/topic_view.rb
index c10c99a72fd..49c9e45b49e 100644
--- a/lib/topic_view.rb
+++ b/lib/topic_view.rb
@@ -349,8 +349,12 @@ class TopicView
   end
 
   def first_post_bookmark_reminder_at
-    @topic.posts.with_deleted.where(post_number: 1).first
-      .bookmarks.where(user: @user).pluck_first(:reminder_at)
+    @first_post_bookmark_reminder_at ||= \
+      begin
+        first_post = @topic.posts.with_deleted.find_by(post_number: 1)
+        return if !first_post
+        first_post.bookmarks.where(user: @user).pluck_first(:reminder_at)
+      end
   end
 
   MAX_PARTICIPANTS = 24