diff --git a/lib/open_project/costs/engine.rb b/lib/open_project/costs/engine.rb
index 6e81a20279..f1ce66c611 100644
--- a/lib/open_project/costs/engine.rb
+++ b/lib/open_project/costs/engine.rb
@@ -17,6 +17,10 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 #++
 
+# Prevent load-order problems in case openproject-plugins is listed after a plugin in the Gemfile
+# or not at all
+require 'open_project/plugins'
+
 module OpenProject::Costs
   class Engine < ::Rails::Engine
     engine_name :openproject_costs