diff --git a/lib/voom/presenters/dsl/components/expansion_panel.rb b/lib/voom/presenters/dsl/components/expansion_panel.rb
index <HASH>..<HASH> 100644
--- a/lib/voom/presenters/dsl/components/expansion_panel.rb
+++ b/lib/voom/presenters/dsl/components/expansion_panel.rb
@@ -1,4 +1,5 @@
 require_relative 'mixins/common'
+require_relative 'mixins/attaches'
 
 module Voom
   module Presenters
Added require for ci tests.