diff --git a/lib/solidus.rb b/lib/solidus.rb
index d405536fde3..fe759aa113a 100644
--- a/lib/solidus.rb
+++ b/lib/solidus.rb
@@ -4,3 +4,4 @@
 require 'solidus_api'
 require 'solidus_backend'
 require 'solidus_sample'
+require 'solidus_legacy_promotions'