diff --git a/app/views/forum_posts/_form.html.erb b/app/views/forum_posts/_form.html.erb
index 416365cf6..e770341ea 100644
--- a/app/views/forum_posts/_form.html.erb
+++ b/app/views/forum_posts/_form.html.erb
@@ -2,9 +2,7 @@
   <%= error_messages_for("forum_post") %>
 
   <%= simple_form_for(@forum_post) do |f| %>
-    <% unless @forum_post.new_record? %>
-      <%= f.input :topic_id, :as => :hidden %>
-    <% end %>
+    <%= f.input :topic_id, :as => :hidden %>
     <%= f.input :body %>
 
     <%= f.button :submit, "Submit" %>