diff --git a/app/models/project_services/buildbox_service.rb b/app/models/project_services/buildbox_service.rb
index b0f8e28c97f..0ab67b79fe4 100644
--- a/app/models/project_services/buildbox_service.rb
+++ b/app/models/project_services/buildbox_service.rb
@@ -12,6 +12,8 @@
 #  properties :text
 #
 
+require "addressable/uri"
+
 class BuildboxService < CiService
   prop_accessor :project_url, :token