diff --git a/lib/tasks/office.rake b/lib/tasks/office.rake
index 3e4c0a286..ce2d3a221 100644
--- a/lib/tasks/office.rake
+++ b/lib/tasks/office.rake
@@ -10,7 +10,7 @@ namespace :office do
       unless Dir.exist?(saved_path)
         Dir.mkdir(saved_path)
       end
-      convered_file = File.join(saved_path, a.disk_filename + ".html")
+      convered_file = File.join(saved_path, a.disk_filename + ".pdf")
       office = Trustie::Utils::Office.new(a.diskfile)
       if office.conver(convered_file)
         puts "process ok: #{convered_file} "