diff --git a/test/functional/dmsf_controller_test.rb b/test/functional/dmsf_controller_test.rb
index b9fce110..a8c935fd 100644
--- a/test/functional/dmsf_controller_test.rb
+++ b/test/functional/dmsf_controller_test.rb
@@ -222,7 +222,7 @@ class DmsfControllerTest < RedmineDmsf::Test::TestCase
     @role.add_permission! :view_dmsf_folders
     get :show, :params => {id: @project.id, format: 'csv', :settings => { dmsf_columns: %w(id title) }}
     assert_response :success
-    assert_equal 'text/csv; header=present', @response.content_type
+    assert_equal 'text/csv', @response.content_type
   end
 
   def test_new_forbidden