diff --git a/lib/gyoku/array.rb b/lib/gyoku/array.rb
index 8be6cc8..4b1272d 100644
--- a/lib/gyoku/array.rb
+++ b/lib/gyoku/array.rb
@@ -9,8 +9,11 @@ class Array
     # Translates a given +array+ to XML. Accepts the XML +key+ to add the elements to,
     # whether to +escape_xml+ and an optional Hash of +attributes+.
     def self.to_xml(array, key, escape_xml = true, attributes = {}, options = {})
+      options[:builder] ||= {}
+      options[:builder][:indent] ||= 0
+      options[:builder][:margin] ||= 0
       self_closing = options.delete(:self_closing)
-      iterate_with_xml array, attributes do |xml, item, attrs, index|
+      iterate_with_xml array, attributes, options do |xml, item, attrs, index|
         if self_closing
           xml.tag!(key, attrs)
 
@@ -18,7 +21,7 @@ def self.to_xml(array, key, escape_xml = true, attributes = {}, options = {})
           case item
             when ::Hash       then xml.tag!(key, attrs) { xml << Hash.to_xml(item, options) }
             when NilClass     then xml.tag!(key, "xsi:nil" => "true")
-            else              xml.tag!(key, attrs) { xml << XMLValue.create(item, escape_xml) }
+            else              xml.tag!(key, attrs, false, XMLValue.create(item, escape_xml))
           end
         end
       end
@@ -28,8 +31,9 @@ def self.to_xml(array, key, escape_xml = true, attributes = {}, options = {})
 
     # Iterates over a given +array+ with a Hash of +attributes+ and yields a builder +xml+
     # instance, the current +item+, any XML +attributes+ and the current +index+.
-    def self.iterate_with_xml(array, attributes)
-      xml = Builder::XmlMarkup.new
+    def self.iterate_with_xml(array, attributes, options = {})
+      xml = Builder::XmlMarkup.new(options[:builder] || {})
+      options[:builder][:margin] += 1
       array.each_with_index do |item, index|
         if item.respond_to?(:keys)
           attrs = item.reduce({}) do |st, v|
@@ -42,6 +46,7 @@ def self.iterate_with_xml(array, attributes)
         end
         yield xml, item, tag_attributes(attributes, index).merge(attrs), index
       end
+      options[:builder][:margin] -= 1
       xml.target!
     end
 
diff --git a/lib/gyoku/hash.rb b/lib/gyoku/hash.rb
index 6ff2509..0678baf 100644
--- a/lib/gyoku/hash.rb
+++ b/lib/gyoku/hash.rb
@@ -9,7 +9,10 @@ class Hash
 
     # Translates a given +hash+ with +options+ to XML.
     def self.to_xml(hash, options = {})
-      iterate_with_xml hash do |xml, key, value, attributes|
+      options[:builder] ||= {}
+      options[:builder][:indent] ||= 0
+      options[:builder][:margin] ||= 0
+      iterate_with_xml hash, options do |xml, key, value, attributes|
         self_closing = key.to_s[-1, 1] == "/"
         escape_xml = key.to_s[-1, 1] != "!"
         xml_key = XMLKey.create key, options
@@ -20,7 +23,7 @@ def self.to_xml(hash, options = {})
           when ::Hash === value   then xml.tag!(xml_key, attributes) { xml << Hash.to_xml(value, options) }
           when self_closing       then xml.tag!(xml_key, attributes)
           when NilClass === value then xml.tag!(xml_key, "xsi:nil" => "true")
-          else                         xml.tag!(xml_key, attributes) { xml << XMLValue.create(value, escape_xml) }
+          else                         xml.tag!(xml_key, attributes, false, XMLValue.create(value, escape_xml))
         end
       end
     end
@@ -33,11 +36,12 @@ def self.to_xml(hash, options = {})
     # Keys beginning with "@" are treated as explicit attributes for their container.
     # You can use both :attributes! and "@" keys to specify attributes.
     # In the event of a conflict, the "@" key takes precedence.
-    def self.iterate_with_xml(hash)
-      xml = Builder::XmlMarkup.new
+    def self.iterate_with_xml(hash, options = {})
+      xml = Builder::XmlMarkup.new(options[:builder] || {})
       attributes = hash[:attributes!] || {}
       hash_without_attributes = hash.reject { |key, value| key == :attributes! }
 
+      options[:builder][:margin] += 1
       order(hash_without_attributes).each do |key| 
         node_attr = attributes[key] || {}
         # node_attr must be kind of ActiveSupport::HashWithIndifferentAccess
@@ -57,6 +61,7 @@ def self.iterate_with_xml(hash)
 
         yield xml, key, node_value, node_attr
       end
+      options[:builder][:margin] -= 1
 
       xml.target!
     end
diff --git a/spec/gyoku/array_spec.rb b/spec/gyoku/array_spec.rb
index 1921dc0..431352a 100644
--- a/spec/gyoku/array_spec.rb
+++ b/spec/gyoku/array_spec.rb
@@ -51,6 +51,12 @@
 
       to_xml(array, "value", :escape_xml, :id => [1, 2]).should == result
     end
+
+    it "should pass options to XML Builder" do
+      array = [{ :name => "adam" }, { :name => "eve" }]
+      result = "<user>\n  <name>adam</name>\n</user>\n<user>\n  <name>eve</name>\n</user>\n"
+      to_xml(array, "user", true, {}, { :builder => {:indent => 2} }).should == result
+    end
   end
 
   def to_xml(*args)
diff --git a/spec/gyoku/hash_spec.rb b/spec/gyoku/hash_spec.rb
index c1f84cc..fe2afb7 100644
--- a/spec/gyoku/hash_spec.rb
+++ b/spec/gyoku/hash_spec.rb
@@ -298,6 +298,12 @@ def singleton.to_datetime
         :attributes! => { :countries => { :array => true } }
       }
     end
+
+    it "should pass options to XML Builder" do
+      hash = {:some => { :new => "user" }}
+      result = "<some>\n  <new>user</new>\n</some>\n"
+      to_xml(hash, { :builder => {:indent => 2} }).should == result
+    end
   end
 
   it "doesn't modify original hash parameter by deleting its attribute keys" do