diff --git a/src/structs.h b/src/structs.h
index 5a7f28b..44df356 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -1705,6 +1705,7 @@
     char_u	jo_io_name_buf[4][NUMBUFLEN];
     char_u	*jo_io_name[4];	/* not allocated! */
     int		jo_io_buf[4];
+    int		jo_pty;
     int		jo_modifiable[4];
     int		jo_message[4];
     channel_T	*jo_channel;