1 files changed, 1 insertions, 0 deletions
diff --git a/tmux.h b/tmux.h
index 060d2bd1..53590eaf 100644
--- a/tmux.h
+++ b/tmux.h
@@ -869,6 +869,7 @@ struct tty {
 #define TTY_ESCAPE 0x4
 #define TTY_UTF8 0x8
 #define TTY_STARTED 0x10
+#define TTY_OPENED 0x20
 	int    		 flags;
 
 	int		 term_flags;