diff --git a/include/transport/user.h b/include/transport/user.h
index 9d7f11182c108b5063ec69f9cdeeb913b39e21b0..952bb3b4adabb178fc016166f822408f899a1c72 100644
--- a/include/transport/user.h
+++ b/include/transport/user.h
@@ -111,7 +111,7 @@ class User : public Swift::EntityCapsProvider {
 
 		boost::signal<void ()> onReadyToConnect;
 		boost::signal<void (Swift::Presence::ref presence)> onPresenceChanged;
-		boost::signal<void (const std::string &room, const std::string &nickname, const std::string &password)> onRoomJoined;
+		boost::signal<void (const Swift::JID &who, const std::string &room, const std::string &nickname, const std::string &password)> onRoomJoined;
 		boost::signal<void (const std::string &room)> onRoomLeft;
 		boost::signal<void ()> onDisconnected;