diff --git a/backends/swiften/main.cpp b/backends/swiften/main.cpp
index 6db0d86c3c88bacfc093e865c4a9af0fbf09b430..973684360d8f568c418e23ddca9048adffa9e738 100644
--- a/backends/swiften/main.cpp
+++ b/backends/swiften/main.cpp
@@ -202,7 +202,7 @@ class SwiftenPlugin : public NetworkPlugin {
 			}
 		}
 
-		void handleMessageSendRequest(const std::string &user, const std::string &legacyName, const std::string &msg, const std::string &xhtml = "") {
+		void handleMessageSendRequest(const std::string &user, const std::string &legacyName, const std::string &msg, const std::string &xhtml = "", const std::string &id = "") {
 			LOG4CXX_INFO(logger, "Sending message from " << user << " to " << legacyName << ".");
 			boost::shared_ptr<Swift::Client> client = m_users[user];
 			if (client) {