diff --git a/sys/arm/include/resource.h b/sys/arm/include/resource.h
index 723d1458e519..bfa5b3f98790 100644
--- a/sys/arm/include/resource.h
+++ b/sys/arm/include/resource.h
@@ -42,5 +42,8 @@
 #define	SYS_RES_MEMORY	3	/* i/o memory */
 #define	SYS_RES_IOPORT	4	/* i/o ports */
 #define	SYS_RES_GPIO	5	/* general purpose i/o */
+#ifdef NEW_PCIB
+#define PCI_RES_BUS	6	/* PCI bus numbers */
+#endif
 
 #endif /* !_MACHINE_RESOURCE_H_ */