diff --git a/sbin/fsck/fsutil.c b/sbin/fsck/fsutil.c
index 342ece32dcd3..657f0f3635b0 100644
--- a/sbin/fsck/fsutil.c
+++ b/sbin/fsck/fsutil.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: fsutil.c,v 1.24 2013/01/13 19:53:16 mlelstv Exp $	*/
+/*	$NetBSD: fsutil.c,v 1.25 2015/06/21 03:58:36 dholland Exp $	*/
 
 /*
  * Copyright (c) 1990, 1993
@@ -31,7 +31,7 @@
 
 #include <sys/cdefs.h>
 #ifndef lint
-__RCSID("$NetBSD: fsutil.c,v 1.24 2013/01/13 19:53:16 mlelstv Exp $");
+__RCSID("$NetBSD: fsutil.c,v 1.25 2015/06/21 03:58:36 dholland Exp $");
 #endif /* not lint */
 
 #include <sys/param.h>
@@ -53,6 +53,8 @@ __RCSID("$NetBSD: fsutil.c,v 1.24 2013/01/13 19:53:16 mlelstv Exp $");
 #include "fsutil.h"
 #include "exitvalues.h"
 
+volatile sig_atomic_t returntosingle;
+
 static const char *dev = NULL;
 static int hot = 0;
 static int preen = 0;
diff --git a/sbin/fsck/fsutil.h b/sbin/fsck/fsutil.h
index b953761d971f..e9cd0bcd4ceb 100644
--- a/sbin/fsck/fsutil.h
+++ b/sbin/fsck/fsutil.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: fsutil.h,v 1.19 2012/04/07 16:44:10 christos Exp $	*/
+/*	$NetBSD: fsutil.h,v 1.20 2015/06/21 03:58:36 dholland Exp $	*/
 
 /*
  * Copyright (c) 1996 Christos Zoulas.  All rights reserved.
@@ -51,7 +51,7 @@ int checkfstab(int, int, void *(*)(struct fstab *),
     int (*) (const char *, const char *, const char *, void *, pid_t *));
 
 void (*ckfinish)(int);
-volatile sig_atomic_t returntosingle;
+extern volatile sig_atomic_t returntosingle;
 void catch(int) __dead;
 void catchquit(int);
 void voidquit(int);