diff --git a/lib/representable/deserializer.rb b/lib/representable/deserializer.rb
index e67d4100..744f1d48 100644
--- a/lib/representable/deserializer.rb
+++ b/lib/representable/deserializer.rb
@@ -88,8 +88,18 @@ module CreateObject
   end
 
   Setter   = ->(input, options) { options[:binding].evaluate_option(:setter, input, options) }
-  SetValue = ->(input, options) { options[:binding].send(:exec_context, options).send(options[:binding].setter, input) }
 
+  SetValue = ->(input, options) do
+    context = options[:binding].send(:exec_context, options)
+
+    arguments = [input]
+    arguments << {
+      options: options[:options],
+      user_options: options[:options][:user_options]
+    } if !context.is_a?(OpenStruct) && context.method(options[:binding].setter).arity == 2
+
+    context.send(options[:binding].setter, *arguments)
+  end
 
   Stop = ->(*) { Pipeline::Stop }
 
@@ -105,4 +115,4 @@ module CreateObject
     return input if options[:options][:exclude]&&!res
     Pipeline::Stop
   end
-end
\ No newline at end of file
+end
diff --git a/lib/representable/serializer.rb b/lib/representable/serializer.rb
index 5178544d..52c39603 100644
--- a/lib/representable/serializer.rb
+++ b/lib/representable/serializer.rb
@@ -3,7 +3,18 @@ module Representable
     options[:binding].evaluate_option(:getter, input, options)
   end
 
-  GetValue = ->(input, options) { options[:binding].send(:exec_context, options).send(options[:binding].getter) }
+  GetValue = ->(input, options) do
+    context = options[:binding].send(:exec_context, options)
+    return options[:binding].send(:exec_context, options).send(options[:binding].getter) unless context
+
+    arguments = []
+    arguments << {
+      options: options[:options],
+      user_options: options[:options][:user_options]
+    } if !context.is_a?(OpenStruct) && context.method(options[:binding].getter).arity == 1
+
+    context.send(options[:binding].getter, *arguments)
+  end
 
   Writer = ->(input, options) do
     options[:binding].evaluate_option(:writer, input, options)
@@ -51,4 +62,4 @@ module Representable
   # Warning: don't rely on AssignAs/AssignName, i am not sure if i leave that as functions.
   AssignAs   = ->(input, options) { options[:as] = As.(input, options); input }
   AssignName = ->(input, options) { options[:as] = options[:binding].name; input }
-end
\ No newline at end of file
+end