diff --git a/sysdeps/unix/sysv/linux/alpha/bits/termios.h b/sysdeps/unix/sysv/linux/alpha/bits/termios.h
index 0abe34f596..f26e84c9f6 100644
--- a/sysdeps/unix/sysv/linux/alpha/bits/termios.h
+++ b/sysdeps/unix/sysv/linux/alpha/bits/termios.h
@@ -77,6 +77,7 @@ struct termios
 # define IXANY		0004000
 # define IUCLC		0010000
 # define IMAXBEL	0020000
+# define IUTF8		0040000
 #endif
 
 /* c_oflag bits */
diff --git a/sysdeps/unix/sysv/linux/mips/bits/termios.h b/sysdeps/unix/sysv/linux/mips/bits/termios.h
index 546faa020e..4ff6e37ad6 100644
--- a/sysdeps/unix/sysv/linux/mips/bits/termios.h
+++ b/sysdeps/unix/sysv/linux/mips/bits/termios.h
@@ -73,6 +73,7 @@ struct termios
 #define IXANY	0004000		/* Any character will restart after stop.  */
 #define IXOFF	0010000		/* Enable start/stop input control.  */
 #define IMAXBEL 0020000		/* Ring bell when input queue is full.  */
+#define IUTF8	0040000		/* Input is UTF8.  */
 
 /* c_oflag bits */
 #define OPOST	0000001		/* Perform output processing.  */