diff --git a/include/_tail_cc/sgtty.h b/include/_tail_cc/sgtty.h
new file mode 100644
index 00000000..7a0056a2
--- /dev/null
+++ b/include/_tail_cc/sgtty.h
@@ -0,0 +1,17 @@
+#ifdef __CHANNEL__
+#define	TIOCGETP	(('t'<<8)|8)
+#define	TIOCSETN	(('t'<<8)|10)
+struct sgttyb {
+	char	sg_ispeed;
+	char	sg_ospeed;
+	char	sg_erase;
+	char	sg_kill;
+	short	sg_flags;
+};
+
+#define	CBREAK	02
+#define	ECHO	010
+#define	CRMOD	020
+#else
+#include "/usr/include/sgtty.h"
+#endif