diff --git a/sys/pc98/i386/machdep.c b/sys/pc98/i386/machdep.c
index 370f4fdf5337..02ee80d3d70c 100644
--- a/sys/pc98/i386/machdep.c
+++ b/sys/pc98/i386/machdep.c
@@ -35,7 +35,7 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)machdep.c	7.4 (Berkeley) 6/3/91
- *	$Id: machdep.c,v 1.30 1997/03/22 18:54:33 kato Exp $
+ *	$Id: machdep.c,v 1.31 1997/03/24 12:29:14 bde Exp $
  */
 
 #include "npx.h"
@@ -579,7 +579,7 @@ sigreturn(p, uap, retval)
 	     ((caddr_t)scp - offsetof(struct sigframe, sf_sc));
 
 	if (useracc((caddr_t)fp, sizeof (*fp), B_WRITE) == 0)
-		return(EINVAL);
+		return(EFAULT);
 
 	/*
 	 * Don't allow users to change privileged or reserved flags.
diff --git a/sys/pc98/pc98/machdep.c b/sys/pc98/pc98/machdep.c
index 370f4fdf5337..02ee80d3d70c 100644
--- a/sys/pc98/pc98/machdep.c
+++ b/sys/pc98/pc98/machdep.c
@@ -35,7 +35,7 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)machdep.c	7.4 (Berkeley) 6/3/91
- *	$Id: machdep.c,v 1.30 1997/03/22 18:54:33 kato Exp $
+ *	$Id: machdep.c,v 1.31 1997/03/24 12:29:14 bde Exp $
  */
 
 #include "npx.h"
@@ -579,7 +579,7 @@ sigreturn(p, uap, retval)
 	     ((caddr_t)scp - offsetof(struct sigframe, sf_sc));
 
 	if (useracc((caddr_t)fp, sizeof (*fp), B_WRITE) == 0)
-		return(EINVAL);
+		return(EFAULT);
 
 	/*
 	 * Don't allow users to change privileged or reserved flags.