diff --git a/Jamfile b/Jamfile
index 1ae85093d..9e606fd6e 100755
--- a/Jamfile
+++ b/Jamfile
@@ -103,7 +103,7 @@ lib torrent
 	<threading>multi
 	<link>static
 #	<variant>debug:<define>TORRENT_VERBOSE_LOGGING
-#	<define>TORRENT_ENABLE_EXTENSIONS
+	<define>TORRENT_ENABLE_EXTENSIONS
 	: debug release
 	;
 
diff --git a/include/libtorrent/session.hpp b/include/libtorrent/session.hpp
index bba04ccfd..448f59ed7 100755
--- a/include/libtorrent/session.hpp
+++ b/include/libtorrent/session.hpp
@@ -293,13 +293,11 @@ namespace libtorrent
 			, boost::filesystem::path const& save_path
 			, entry const& resume_data = entry());
 
-#ifdef TORRENT_ENABLE_EXTENSIONS
 		torrent_handle add_torrent(
 			char const* tracker_url
 			, sha1_hash const& info_hash
 			, boost::filesystem::path const& save_path
 			, entry const& resume_data = entry());
-#endif
 
 		session_status status() const;