1 files changed, 5 insertions, 1 deletions
diff --git a/Swiften/Network/HostAddress.h b/Swiften/Network/HostAddress.h
index e4ddffb..7a22cf4 100644
--- a/Swiften/Network/HostAddress.h
+++ b/Swiften/Network/HostAddress.h
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2010-2016 Isode Limited.
+ * Copyright (c) 2010-2018 Isode Limited.
  * All rights reserved.
  * See the COPYING file for more information.
  */
 
 #pragma once
 
 #include <string>
 
 #include <boost/asio/ip/address.hpp>
@@ -21,18 +21,22 @@ namespace Swift {
             HostAddress(const boost::asio::ip::address& address);
 
             std::string toString() const;
             boost::asio::ip::address getRawAddress() const;
 
             bool operator==(const HostAddress& o) const {
                 return address_ == o.address_;
             }
 
+            bool operator<(const HostAddress& o) const {
+              return address_ < o.address_;
+            }
+
             bool isValid() const;
             bool isLocalhost() const;
 
             static boost::optional<HostAddress> fromString(const std::string& addressString);
 
         private:
             boost::asio::ip::address address_;
     };
 }