diff --git a/spectrum/src/frontends/slack/SlackSession.cpp b/spectrum/src/frontends/slack/SlackSession.cpp
index 0334a4d84d8bf5109e8d07c35e0c0424de88535f..8352503ed2a7b0ff58a4302088bd8e8bc4ce0361 100644
--- a/spectrum/src/frontends/slack/SlackSession.cpp
+++ b/spectrum/src/frontends/slack/SlackSession.cpp
@@ -151,7 +151,7 @@ void SlackSession::sendMessage(boost::shared_ptr<Swift::Message> message) {
 
 	LOG4CXX_INFO(logger, m_uinfo.jid << "Sending message to Slack channel " << channel << " from " << from);
 #if HAVE_SWIFTEN_3
-	std::string body = message->getBody().value_or("");
+	std::string body = message->getBody().get_value_or("");
 #else
 	std::string body = message->getBody();
 #endif