diff --git a/src/include/termios.h b/src/include/termios.h
index 0ef4a7c1..a08c8ebb 100644
--- a/src/include/termios.h
+++ b/src/include/termios.h
@@ -4,6 +4,9 @@
 typedef unsigned char cc_t;
 typedef unsigned int speed_t;
 typedef unsigned int tcflag_t;
+
+#define VINTR    0
+#define ISIG 0000001
 #define NCCS     32
 #define ECHO 0000010
 #define ICANON 0000002