diff --git a/app/views/documents/_form.html.erb b/app/views/documents/_form.html.erb
index 15e37fa..68d87e9 100644
--- a/app/views/documents/_form.html.erb
+++ b/app/views/documents/_form.html.erb
@@ -8,6 +8,7 @@
 	<% if @document.supplemental == true %>
 		<%= f.input :usage, label: "Document type", collection: Document.usages.keys.map(&:to_sym), required: true %>
 	<% else %>
+		<%= f.hidden_field :supplemental, value: @document.supplemental %>
 		<%= f.hidden_field :usage, value: :thesis %>
 	<% end %>