diff --git a/include/libtorrent/session.hpp b/include/libtorrent/session.hpp
index 2cf18560f..563301321 100644
--- a/include/libtorrent/session.hpp
+++ b/include/libtorrent/session.hpp
@@ -600,7 +600,7 @@ namespace libtorrent
 			, const char* net_interface = 0
 			, int flags = 0);
 		unsigned short listen_port() const;
-
+		bool is_listening() const;
 
 		// if the listen port failed in some way
 		// you can retry to listen on another port-