diff --git a/sys/dev/pccard/card_if.m b/sys/dev/pccard/card_if.m
index c843e32ce62..40c429eac14 100644
--- a/sys/dev/pccard/card_if.m
+++ b/sys/dev/pccard/card_if.m
@@ -27,6 +27,7 @@
 #
 
 #include <sys/bus.h>
+#include <machine/bus.h>
 #include <dev/pccard/pccardvar.h>
 
 INTERFACE card;
diff --git a/sys/dev/sn/if_sn_pccard.c b/sys/dev/sn/if_sn_pccard.c
index 3b0409e2530..09c944a95e0 100644
--- a/sys/dev/sn/if_sn_pccard.c
+++ b/sys/dev/sn/if_sn_pccard.c
@@ -42,6 +42,8 @@ __FBSDID("$FreeBSD$");
 #include <net/if.h> 
 #include <net/if_arp.h>
 
+#include <machine/bus.h>
+
 #include <dev/pccard/pccardvar.h>
 #include <dev/sn/if_snvar.h>