diff --git a/sysdeps/unix/sysv/linux/alpha/sys/kernel_termios.h b/sysdeps/unix/sysv/linux/alpha/sys/kernel_termios.h
index eebe976ce1..4be759a51f 100644
--- a/sysdeps/unix/sysv/linux/alpha/sys/kernel_termios.h
+++ b/sysdeps/unix/sysv/linux/alpha/sys/kernel_termios.h
@@ -1,5 +1,10 @@
+#ifndef _SYS_KERNEL_TERMIOS_H
+#define _SYS_KERNEL_TERMIOS_H 1
 /* The following corresponds to the values from the Linux 2.1.20 kernel.  */
 
+/* We need the definition of tcflag_t, cc_t, and speed_t.  */
+#include <termbits.h>
+
 #define __KERNEL_NCCS 19
 
 struct __kernel_termios
@@ -16,3 +21,5 @@ struct __kernel_termios
 
 #define _HAVE_C_ISPEED 1
 #define _HAVE_C_OSPEED 1
+
+#endif /* sys/kernel_termios.h */