diff --git a/app/views/dmsf_files/show.api.rsb b/app/views/dmsf_files/show.api.rsb
index f998adce..034fb18e 100644
--- a/app/views/dmsf_files/show.api.rsb
+++ b/app/views/dmsf_files/show.api.rsb
@@ -2,7 +2,7 @@ api.dmsf_file do
   api.id @file.id
   api.name @file.name
   api.project_id @file.project_id
-  api.dmsf_folder_id @file.folder if @file.dmsf_folder_id
+  api.dmsf_folder_id @file.dmsf_folder_id if @file.dmsf_folder_id
   api.version "#{@file.last_revision.major_version}.#{@file.last_revision.minor_version}" if @file.last_revision
   api.content_url url_for(:controller => :dmsf_files, :action => 'show', :download => '', :id => @file)
 end
\ No newline at end of file