diff --git a/include/flashchips.h b/include/flashchips.h
index 0fa1afe..4718bd2 100644
--- a/include/flashchips.h
+++ b/include/flashchips.h
@@ -353,6 +353,7 @@
 #define FUDAN_FM25Q08		0x4014
 #define FUDAN_FM25Q16		0x4015
 #define FUDAN_FM25Q32		0x4016
+#define FUDAN_FM25Q64		0x4017
 
 #define FUJITSU_ID		0x04	/* Fujitsu */
 #define FUJITSU_MBM29DL400BC	0x0F