diff --git a/sys/sys/rman.h b/sys/sys/rman.h
index 0e59f75fced..02b319a7869 100644
--- a/sys/sys/rman.h
+++ b/sys/sys/rman.h
@@ -64,6 +64,8 @@ struct	resource {
 #define	RF_WANTED	0x0010	/* somebody is waiting for this resource */
 #define	RF_FIRSTSHARE	0x0020	/* first in sharing list */
 
+#define RF_PCCARD_ATTR	0x10000 /* PCCARD attribute memory */
+
 enum	rman_type { RMAN_UNINIT = 0, RMAN_GAUGE, RMAN_ARRAY };
 
 struct	rman {