diff --git a/etcd/Response.hpp b/etcd/Response.hpp
index 435936a..290fd22 100644
--- a/etcd/Response.hpp
+++ b/etcd/Response.hpp
@@ -85,6 +85,8 @@ namespace etcd
 
     Response();
 
+    Response(const Response &);
+
     /**
      * Returns true if this is a successful response
      */
@@ -192,13 +194,13 @@ namespace etcd
 
     int         _error_code;
     std::string _error_message;
-    int64_t         _index;
+    int64_t     _index;
     std::string _action;
     Value       _value;
     Value       _prev_value;
     Values      _values;
     Keys        _keys;
-    int64_t         _compact_revision = -1; // for watch
+    int64_t     _compact_revision = -1; // for watch
     std::string _lock_key; // for lock
     std::string _name;  // for campaign (in v3election)
     std::vector<Event> _events; // for watch
diff --git a/src/Response.cpp b/src/Response.cpp
index b065f8f..66972f3 100644
--- a/src/Response.cpp
+++ b/src/Response.cpp
@@ -3,6 +3,32 @@
 
 #include <iostream>
 
+etcd::Response::Response()
+  : _error_code(0),
+    _index(0)
+{
+}
+
+etcd::Response::Response(const etcd::Response & response) {
+  this->_error_code = response._error_code;
+  this->_error_message = response._error_message;
+  this->_index = response._index;
+  this->_action = response._action;
+  this->_value = response._value;
+  this->_prev_value = response._prev_value;
+  this->_values = response._values;
+  this->_keys = response._keys;
+  this->_compact_revision = response._compact_revision;
+  this->_lock_key = response._lock_key;
+  this->_name = response._name; 
+  this->_events = response._events;
+  this->_duration = response._duration;
+
+  this->_cluster_id = response._cluster_id;
+  this->_member_id = response._member_id;
+  this->_raft_term = response._raft_term;
+}
+
 etcd::Response::Response(const etcdv3::V3Response& reply, std::chrono::microseconds const& duration)
 {
   _index = reply.get_index();
@@ -41,13 +67,6 @@ etcd::Response::Response(const etcdv3::V3Response& reply, std::chrono::microseco
   _raft_term = reply.get_raft_term();
 }
 
-
-etcd::Response::Response()
-  : _error_code(0),
-    _index(0)
-{
-}
-
 etcd::Response::Response(int error_code, char const * error_message)
   : _error_code(error_code),
     _error_message(error_message),