diff --git a/sys/conf/files.i386 b/sys/conf/files.i386
index f171d77e08bc..ff9a9c06b0dd 100644
--- a/sys/conf/files.i386
+++ b/sys/conf/files.i386
@@ -117,7 +117,7 @@ dev/sbni/if_sbni_pci.c		optional	sbni pci
 dev/sio/sio.c			optional	sio
 dev/sio/sio_isa.c		optional	sio isa
 dev/sio/sio_pccard.c		optional	sio card
-#dev/sio/sio_pccard.c		optional	sio pccard
+dev/sio/sio_pccard.c		optional	sio pccard
 dev/sio/sio_pci.c		optional	sio pci
 dev/sr/if_sr_isa.c		optional	sr isa
 dev/syscons/apm/apm_saver.c	optional	apm_saver apm
diff --git a/sys/conf/files.pc98 b/sys/conf/files.pc98
index f0639986a938..fb1cdf86647f 100644
--- a/sys/conf/files.pc98
+++ b/sys/conf/files.pc98
@@ -399,6 +399,8 @@ pc98/pc98/scgdcrndr.c		optional	sc gdc
 pc98/pc98/scterm-sck.c		optional	sc
 pc98/pc98/scvtbpc98.c		optional	sc
 pc98/pc98/sio.c			optional	sio
+#pc98/pc98/sio_pccard.c		optional	card
+#pc98/pc98/sio_pccard.c		optional	pccard
 pc98/pc98/spkr.c		optional	speaker
 pc98/pc98/syscons.c		optional	sc
 pc98/pc98/syscons_pc98.c	optional	sc
diff --git a/sys/dev/sio/sio_pccard.c b/sys/dev/sio/sio_pccard.c
index 3d154984d6f0..c25709d7d8ef 100644
--- a/sys/dev/sio/sio_pccard.c
+++ b/sys/dev/sio/sio_pccard.c
@@ -40,18 +40,28 @@
 #include <machine/resource.h>
 #include <sys/timepps.h>
 
+#include <dev/pccard/pccardreg.h>
+#include <dev/pccard/pccardvar.h>
+#include <dev/pccard/pccarddevs.h>
+
 #include <dev/sio/siovar.h>
 
 static	int	sio_pccard_attach __P((device_t dev));
 static	int	sio_pccard_detach __P((device_t dev));
+static	int	sio_pccard_match __P((device_t self));
 static	int	sio_pccard_probe __P((device_t dev));
 
 static device_method_t sio_pccard_methods[] = {
 	/* Device interface */
-	DEVMETHOD(device_probe,		sio_pccard_probe),
-	DEVMETHOD(device_attach,	sio_pccard_attach),
+	DEVMETHOD(device_probe,		pccard_compat_probe),
+	DEVMETHOD(device_attach,	pccard_compat_attach),
 	DEVMETHOD(device_detach,	sio_pccard_detach),
 
+	/* Card interface */
+	DEVMETHOD(card_compat_match,	sio_pccard_match),
+	DEVMETHOD(card_compat_probe,	sio_pccard_probe),
+	DEVMETHOD(card_compat_attach,	sio_pccard_attach),
+
 	{ 0, 0 }
 };
 
@@ -61,6 +71,24 @@ static driver_t sio_pccard_driver = {
 	sizeof(struct com_s),
 };
 
+static int
+sio_pccard_match(device_t dev)
+{
+	int		error = 0;
+	u_int32_t	fcn = PCCARD_FUNCTION_UNSPEC;
+
+	error = pccard_get_function(dev, &fcn);
+	if (error != 0)
+		return (error);
+	/*
+	 * If a serial card, we are likely the right driver.
+	 */
+	if (fcn == PCCARD_FUNCTION_SERIAL)
+		return (0);
+
+	return(ENXIO);
+}
+
 static int
 sio_pccard_probe(dev)
 	device_t	dev;