diff --git a/elasticsearch-transport/lib/elasticsearch/transport/transport/base.rb b/elasticsearch-transport/lib/elasticsearch/transport/transport/base.rb
index c82867edb7..e87b4d89d1 100644
--- a/elasticsearch-transport/lib/elasticsearch/transport/transport/base.rb
+++ b/elasticsearch-transport/lib/elasticsearch/transport/transport/base.rb
@@ -129,7 +129,7 @@ def __rebuild_connections(arguments={})
 
             new_connections = __build_connections
             stale_connections = @connections.all.select  { |c| ! new_connections.include?(c) }
-            new_connections = new_connections.reject { |c| @connections.include?(c) }
+            new_connections = new_connections.reject { |c| @connections.all.include?(c) }
 
             @connections.remove(stale_connections)
             @connections.add(new_connections)
diff --git a/elasticsearch-transport/test/unit/transport_base_test.rb b/elasticsearch-transport/test/unit/transport_base_test.rb
index 0d98867b99..124b9ed517 100644
--- a/elasticsearch-transport/test/unit/transport_base_test.rb
+++ b/elasticsearch-transport/test/unit/transport_base_test.rb
@@ -572,6 +572,22 @@ def initialize(*); end
       assert_equal 1, @transport.connections.size
       assert_equal 1, @transport.connections.all.size
     end
+
+    should "not duplicate connections" do
+      @transport.__rebuild_connections :hosts => [ { :host => 'node1', :port => 1 },
+                                                   { :host => 'node2', :port => 2 } ],
+                                       :options => { :http => {} }
+      assert_equal 2, @transport.connections.size
+
+      @transport.connections[0].dead!
+
+      @transport.__rebuild_connections :hosts => [ { :host => 'node1', :port => 1 },
+                                                   { :host => 'node2', :port => 2 } ],
+                                       :options => { :http => {} }
+
+      assert_equal 2, @transport.connections.all.size
+      assert_equal 1, @transport.connections.size
+    end
   end
 
   context "rebuilding connections" do