diff --git a/lib/active_model/serializer/collection_serializer.rb b/lib/active_model/serializer/collection_serializer.rb
index 7a80a839..19a736cf 100644
--- a/lib/active_model/serializer/collection_serializer.rb
+++ b/lib/active_model/serializer/collection_serializer.rb
@@ -19,11 +19,10 @@ module ActiveModel
 
       # @api private
       def serializable_hash(adapter_options, options, adapter_instance)
-        include_directive = ActiveModel::Serializer.include_directive_from_options(adapter_options)
-        adapter_options[:cached_attributes] ||= ActiveModel::Serializer.cache_read_multi(self, adapter_instance, include_directive)
-        adapter_opts = adapter_options.merge(include_directive: include_directive)
+        options[:include_directive] ||= ActiveModel::Serializer.include_directive_from_options(adapter_options)
+        options[:cached_attributes] ||= ActiveModel::Serializer.cache_read_multi(self, adapter_instance, options[:include_directive])
         serializers.map do |serializer|
-          serializer.serializable_hash(adapter_opts, options, adapter_instance)
+          serializer.serializable_hash(adapter_options, options, adapter_instance)
         end
       end
 
diff --git a/test/cache_test.rb b/test/cache_test.rb
index f0958931..508c346f 100644
--- a/test/cache_test.rb
+++ b/test/cache_test.rb
@@ -415,7 +415,7 @@ module ActiveModelSerializers
         adapter_options = {}
         adapter_instance = ActiveModelSerializers::Adapter::Attributes.new(serializers, adapter_options)
         serializers.serializable_hash(adapter_options, options, adapter_instance)
-        cached_attributes = adapter_options.fetch(:cached_attributes).with_indifferent_access
+        cached_attributes = options.fetch(:cached_attributes).with_indifferent_access
 
         include_directive = ActiveModelSerializers.default_include_directive
         manual_cached_attributes = ActiveModel::Serializer.cache_read_multi(serializers, adapter_instance, include_directive).with_indifferent_access
@@ -446,9 +446,9 @@ module ActiveModelSerializers
         serializers.serializable_hash(adapter_options, options, adapter_instance)
 
         # Should find something with read_multi now
-        adapter_options = {}
+        options = {}
         serializers.serializable_hash(adapter_options, options, adapter_instance)
-        cached_attributes = adapter_options.fetch(:cached_attributes)
+        cached_attributes = options.fetch(:cached_attributes)
 
         include_directive = ActiveModelSerializers.default_include_directive
         manual_cached_attributes = ActiveModel::Serializer.cache_read_multi(serializers, adapter_instance, include_directive)