diff --git a/sys/dev/cs/if_cs_pccard.c b/sys/dev/cs/if_cs_pccard.c
index dbd3e54aad14..c7b3eca51ef5 100644
--- a/sys/dev/cs/if_cs_pccard.c
+++ b/sys/dev/cs/if_cs_pccard.c
@@ -45,6 +45,7 @@ __FBSDID("$FreeBSD$");
 #include <dev/cs/if_csvar.h>
 #include <dev/cs/if_csreg.h>
 #include <dev/pccard/pccardvar.h>
+#include <dev/pccard/pccard_cis.h>
 
 #include "card_if.h"
 #include "pccarddevs.h"
@@ -57,6 +58,15 @@ static int
 cs_pccard_match(device_t dev)
 {
 	const struct pccard_product *pp;
+	int		error;
+	uint32_t	fcn = PCCARD_FUNCTION_UNSPEC;
+
+	/* Make sure we're a network function */
+	error = pccard_get_function(dev, &fcn);
+	if (error != 0)
+		return (error);
+	if (fcn != PCCARD_FUNCTION_NETWORK)
+		return (ENXIO);
 
 	if ((pp = pccard_product_lookup(dev, cs_pccard_products,
 	    sizeof(cs_pccard_products[0]), NULL)) != NULL) {