diff --git a/src/header/termios/redox.rs b/src/header/termios/redox.rs
index 60412d6a54..526e59aa51 100644
--- a/src/header/termios/redox.rs
+++ b/src/header/termios/redox.rs
@@ -31,6 +31,7 @@ pub const IGNCR: usize = 0o000_200;
 pub const ICRNL: usize = 0o000_400;
 pub const IXON: usize = 0o001_000;
 pub const IXOFF: usize = 0o002_000;
+pub const IXANY: usize = 0o004_000;
 /* } c_iflag */
 
 /* c_oflag { */