diff --git a/include/linux/pci.h b/include/linux/pci.h
index 5be420a..4533244 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -139,6 +139,7 @@
 	unsigned short	subsystem_vendor;
 	unsigned short	subsystem_device;
 	unsigned int	class;		/* 3 bytes: (base,sub,prog-if) */
+	u8		revision;	/* PCI revision, low byte of class word */
 	u8		hdr_type;	/* PCI header type (`multi' flag masked out) */
 	u8		rom_base_reg;	/* which config register controls the ROM */
 	u8		pin;  		/* which interrupt pin this device uses */