diff --git a/headers/posix/termios.h b/headers/posix/termios.h
index 5d01343d46..88db94675a 100644
--- a/headers/posix/termios.h
+++ b/headers/posix/termios.h
@@ -223,6 +223,7 @@ extern speed_t	cfgetispeed(const struct termios *termios);
 extern speed_t	cfgetospeed(const struct termios *termios);
 extern int		cfsetispeed(struct termios *termios, speed_t speed);
 extern int		cfsetospeed(struct termios *termios, speed_t speed);
+extern void		cfmakeraw(struct termios *termios);
 extern int		tcgetattr(int fd, struct termios *termios);
 extern int		tcsetattr(int fd, int option, const struct termios *termios);
 extern int		tcsendbreak(int fd, int duration);
diff --git a/src/system/libroot/posix/termios.c b/src/system/libroot/posix/termios.c
index 77d3e8dd46..0158f86b30 100644
--- a/src/system/libroot/posix/termios.c
+++ b/src/system/libroot/posix/termios.c
@@ -146,3 +146,15 @@ cfsetospeed(struct termios *termios, speed_t speed)
 	termios->c_cflag |= speed;
 	return 0;
 }
+
+
+void
+cfmakeraw(struct termios *termios)
+{
+	termios->c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR
+		| ICRNL | IXON);
+	termios->c_oflag &= ~OPOST;
+	termios->c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
+	termios->c_cflag &= ~(CSIZE | PARENB);
+	termios->c_cflag |= CS8;
+}