1 files changed, 2 insertions, 2 deletions
diff --git a/Swiften/Network/MiniUPnPInterface.cpp b/Swiften/Network/MiniUPnPInterface.cpp
index 2c61ad3..af3b67c 100644
--- a/Swiften/Network/MiniUPnPInterface.cpp
+++ b/Swiften/Network/MiniUPnPInterface.cpp
@@ -1,17 +1,17 @@
 /*
  * Copyright (c) 2011 Tobias Markmann
  * Licensed under the simplified BSD license.
  * See Documentation/Licenses/BSD-simplified.txt for more information.
  */
 
 /*
- * Copyright (c) 2015-2016 Isode Limited.
+ * Copyright (c) 2015-2018 Isode Limited.
  * All rights reserved.
  * See the COPYING file for more information.
  */
 
 #include <Swiften/Network/MiniUPnPInterface.h>
 
 #include <memory>
 
 #include <boost/lexical_cast.hpp>
@@ -67,19 +67,19 @@ boost::optional<HostAddress> MiniUPnPInterface::getPublicIP() {
     int ret = UPNP_GetExternalIPAddress(p->urls.controlURL, p->data.first.servicetype, externalIPAddress);
     if (ret != UPNPCOMMAND_SUCCESS) {
         return boost::optional<HostAddress>();
     }
     else {
         return HostAddress::fromString(std::string(externalIPAddress));
     }
 }
 
-boost::optional<NATPortMapping> MiniUPnPInterface::addPortForward(int actualLocalPort, int actualPublicPort) {
+boost::optional<NATPortMapping> MiniUPnPInterface::addPortForward(unsigned short actualLocalPort, unsigned short actualPublicPort) {
     if (!p->isValid) {
         return boost::optional<NATPortMapping>();
     }
 
     NATPortMapping mapping(actualLocalPort, actualPublicPort, NATPortMapping::TCP);
 
     std::string publicPort = std::to_string(mapping.getPublicPort());
     std::string localPort = std::to_string(mapping.getLocalPort());
     std::string leaseSeconds = std::to_string(mapping.getLeaseInSeconds());