1 files changed, 1 insertions, 0 deletions
diff --git a/tmux.h b/tmux.h
index 64b66e15..1d198b69 100644
--- a/tmux.h
+++ b/tmux.h
@@ -1980,6 +1980,7 @@ struct session	*session_create(const char *, const char *, const char *,
 		     struct environ *, struct termios *, int, u_int, u_int,
 		     char **);
 void		 session_destroy(struct session *);
+void		 session_update_activity(struct session *);
 struct session	*session_next_session(struct session *);
 struct session	*session_previous_session(struct session *);
 struct winlink	*session_new(struct session *,