diff --git a/sys/dev/ic/lpt.c b/sys/dev/ic/lpt.c
index cf9e81252d16..e97d87761d96 100644
--- a/sys/dev/ic/lpt.c
+++ b/sys/dev/ic/lpt.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: lpt.c,v 1.34 1996/03/17 13:40:29 cgd Exp $	*/
+/*	$NetBSD: lpt.c,v 1.35 1996/03/18 09:14:32 cgd Exp $	*/
 
 /*
  * Copyright (c) 1993, 1994 Charles Hannum.
@@ -268,7 +268,7 @@ lptattach(parent, self, aux)
 	bus_io_write_1(bc, ioh, lpt_control, LPC_NINIT);
 
 	if (ia->ia_irq != IRQUNK)
-		sc->sc_ih = isa_intr_establish(ia->ia_irq, IST_EDGE, IPL_NONE,
+		sc->sc_ih = isa_intr_establish(ia->ia_irq, IST_EDGE, IPL_TTY,
 		    lptintr, sc);
 }
 
diff --git a/sys/dev/ic/lptvar.h b/sys/dev/ic/lptvar.h
index 419db36505d1..83a1582ba297 100644
--- a/sys/dev/ic/lptvar.h
+++ b/sys/dev/ic/lptvar.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: lptvar.h,v 1.34 1996/03/17 13:40:29 cgd Exp $	*/
+/*	$NetBSD: lptvar.h,v 1.35 1996/03/18 09:14:32 cgd Exp $	*/
 
 /*
  * Copyright (c) 1993, 1994 Charles Hannum.
@@ -268,7 +268,7 @@ lptattach(parent, self, aux)
 	bus_io_write_1(bc, ioh, lpt_control, LPC_NINIT);
 
 	if (ia->ia_irq != IRQUNK)
-		sc->sc_ih = isa_intr_establish(ia->ia_irq, IST_EDGE, IPL_NONE,
+		sc->sc_ih = isa_intr_establish(ia->ia_irq, IST_EDGE, IPL_TTY,
 		    lptintr, sc);
 }
 
diff --git a/sys/dev/isa/lpt.c b/sys/dev/isa/lpt.c
index cf9e81252d16..e97d87761d96 100644
--- a/sys/dev/isa/lpt.c
+++ b/sys/dev/isa/lpt.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: lpt.c,v 1.34 1996/03/17 13:40:29 cgd Exp $	*/
+/*	$NetBSD: lpt.c,v 1.35 1996/03/18 09:14:32 cgd Exp $	*/
 
 /*
  * Copyright (c) 1993, 1994 Charles Hannum.
@@ -268,7 +268,7 @@ lptattach(parent, self, aux)
 	bus_io_write_1(bc, ioh, lpt_control, LPC_NINIT);
 
 	if (ia->ia_irq != IRQUNK)
-		sc->sc_ih = isa_intr_establish(ia->ia_irq, IST_EDGE, IPL_NONE,
+		sc->sc_ih = isa_intr_establish(ia->ia_irq, IST_EDGE, IPL_TTY,
 		    lptintr, sc);
 }
 
diff --git a/sys/dev/isa/lpt_isa.c b/sys/dev/isa/lpt_isa.c
index e781093bdd9b..c0ddc7dd136a 100644
--- a/sys/dev/isa/lpt_isa.c
+++ b/sys/dev/isa/lpt_isa.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: lpt_isa.c,v 1.34 1996/03/17 13:40:29 cgd Exp $	*/
+/*	$NetBSD: lpt_isa.c,v 1.35 1996/03/18 09:14:32 cgd Exp $	*/
 
 /*
  * Copyright (c) 1993, 1994 Charles Hannum.
@@ -268,7 +268,7 @@ lptattach(parent, self, aux)
 	bus_io_write_1(bc, ioh, lpt_control, LPC_NINIT);
 
 	if (ia->ia_irq != IRQUNK)
-		sc->sc_ih = isa_intr_establish(ia->ia_irq, IST_EDGE, IPL_NONE,
+		sc->sc_ih = isa_intr_establish(ia->ia_irq, IST_EDGE, IPL_TTY,
 		    lptintr, sc);
 }