diff --git a/gnu/usr.bin/binutils/gdb/alpha/freebsd-nat.c b/gnu/usr.bin/binutils/gdb/alpha/freebsd-nat.c
index 0cc17922fa2..e7a6f7bd7f4 100644
--- a/gnu/usr.bin/binutils/gdb/alpha/freebsd-nat.c
+++ b/gnu/usr.bin/binutils/gdb/alpha/freebsd-nat.c
@@ -1,4 +1,5 @@
-/* Native-dependent code for BSD Unix running on i386's, for GDB.
+/* $FreeBSD$ */
+/* Native-dependent code for BSD Unix running on alphas's, for GDB.
    Copyright 1988, 1989, 1991, 1992, 1994, 1996 Free Software Foundation, Inc.
 
 This file is part of GDB.
@@ -20,6 +21,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 #include "defs.h"
 
 #include <sys/types.h>
+#include <sys/lock.h>
 #include <sys/ptrace.h>
 #include <machine/reg.h>
 #include <machine/frame.h>
diff --git a/gnu/usr.bin/binutils/gdb/alpha/kvm-fbsd.c b/gnu/usr.bin/binutils/gdb/alpha/kvm-fbsd.c
index 6da1a8e455c..2a3920077d6 100644
--- a/gnu/usr.bin/binutils/gdb/alpha/kvm-fbsd.c
+++ b/gnu/usr.bin/binutils/gdb/alpha/kvm-fbsd.c
@@ -32,6 +32,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
 #include <sys/param.h>
+#include <sys/lock.h>
 #include <sys/time.h>
 #include <sys/proc.h>
 #include <sys/user.h>