--- a/include/linux/eeprom_93cx6.h
+++ b/include/linux/eeprom_93cx6.h
@@ -30,6 +30,7 @@
 #define PCI_EEPROM_WIDTH_93C46	6
 #define PCI_EEPROM_WIDTH_93C56	8
 #define PCI_EEPROM_WIDTH_93C66	8
+#define PCI_EEPROM_WIDTH_93C86	8
 #define PCI_EEPROM_WIDTH_OPCODE	3
 #define PCI_EEPROM_WRITE_OPCODE	0x05
 #define PCI_EEPROM_READ_OPCODE	0x06
