diff --git a/test/unit/lib/redmine/asset_path_test.rb b/test/unit/lib/redmine/asset_path_test.rb
index e820f33fd..7d0a595d3 100644
--- a/test/unit/lib/redmine/asset_path_test.rb
+++ b/test/unit/lib/redmine/asset_path_test.rb
@@ -21,7 +21,8 @@ require_relative '../../../test_helper'
 class Redmine::AssetPathTest < ActiveSupport::TestCase
   def setup
     assets_dir = Rails.root.join('test/fixtures/asset_path/foo')
-    @asset_path = Redmine::AssetPath.new(assets_dir, assets_dir.children.filter_map{|child| child if child.directory? }, 'plugin_assets/foo/')
+    paths = assets_dir.children.filter_map{|child| child if child.directory? && !child.basename.to_s.starts_with?(".")}
+    @asset_path = Redmine::AssetPath.new(assets_dir, paths, 'plugin_assets/foo/')
     @assets = {}
     @transition_map = {}
     @asset_path.update(transition_map: @transition_map, assets: @assets)