diff --git a/lib/nacre/concerns/collectible.rb b/lib/nacre/concerns/collectible.rb
index 5682cba..0b31fcd 100644
--- a/lib/nacre/concerns/collectible.rb
+++ b/lib/nacre/concerns/collectible.rb
@@ -1,6 +1,8 @@
 # frozen_string_literal: true
 module Nacre
   module Collectible
+    include Enumerable
+
     def self.included(base)
       base.class_exec do
         def initialize(resource_list = []) # rubocop:disable NestedMethodDefinition
diff --git a/lib/nacre/order/invoice_collection.rb b/lib/nacre/order/invoice_collection.rb
index 1de7e97..c38093c 100644
--- a/lib/nacre/order/invoice_collection.rb
+++ b/lib/nacre/order/invoice_collection.rb
@@ -3,7 +3,6 @@
 module Nacre
   class Order::InvoiceCollection
     include Collectible
-    include Enumerable
 
     def self.resource_class
       Nacre::Order::Invoice
diff --git a/lib/nacre/product/sales_channel_collection.rb b/lib/nacre/product/sales_channel_collection.rb
index 952a40d..2fc5996 100644
--- a/lib/nacre/product/sales_channel_collection.rb
+++ b/lib/nacre/product/sales_channel_collection.rb
@@ -2,9 +2,7 @@
 
 module Nacre
   class Product::SalesChannelCollection
-
     include Collectible
-    include Enumerable
     extend Inflectible
 
     def self.resource_class