diff --git a/sysdeps/unix/sysv/linux/alpha/bits/ioctls.h b/sysdeps/unix/sysv/linux/alpha/bits/ioctls.h
index a30035cee5..7096b5a76a 100644
--- a/sysdeps/unix/sysv/linux/alpha/bits/ioctls.h
+++ b/sysdeps/unix/sysv/linux/alpha/bits/ioctls.h
@@ -20,6 +20,9 @@
 # error "Never use <bits/ioctls.h> directly; include <sys/ioctl.h> instead."
 #endif
 
+/* Get the necessary definitions.  */
+#include <termios.h>
+
 /* Use the definitions from the kernel header files.  */
 #include <asm/ioctls.h>