diff --git a/lib/oga/xml/node_set.rb b/lib/oga/xml/node_set.rb
index a3bf283..3d10247 100644
--- a/lib/oga/xml/node_set.rb
+++ b/lib/oga/xml/node_set.rb
@@ -44,7 +44,7 @@ module Oga
       # @param [Oga::XML::NodeSet] owner The owner of the set.
       #
       def initialize(nodes = [], owner = nil)
-        @nodes = nodes.uniq
+        @nodes = nodes
         @owner = owner
 
         @nodes.each { |node| take_ownership(node) } if owner
diff --git a/spec/oga/xml/node_set_spec.rb b/spec/oga/xml/node_set_spec.rb
index 3857888..d82a283 100644
--- a/spec/oga/xml/node_set_spec.rb
+++ b/spec/oga/xml/node_set_spec.rb
@@ -25,13 +25,6 @@ describe Oga::XML::NodeSet do
 
       node.node_set.should == set
     end
-
-    it 'only store unique nodes' do
-      n1  = Oga::XML::Element.new(:name => 'a')
-      set = described_class.new([n1, n1])
-
-      set.length.should == 1
-    end
   end
 
   describe '#each' do