diff --git a/flash.h b/flash.h
index 9375e57..9009ee6 100644
--- a/flash.h
+++ b/flash.h
@@ -47,6 +47,7 @@
 #define SST_39VF020       0xD6	/* SST 39VF020 device */
 #define SST_49LF040B	  0x50	/* SST 49LF040B device */
 #define SST_49LF040	  0x51	/* SST 49LF040 device */
+#define SST_49LF020A	  0x52	/* SST 49LF020A device */
 #define SST_49LF080A	  0x5B	/* SST 48LF080A device */
 #define SST_49LF002A	  0x57	/* SST 49LF002A device */
 #define SST_49LF003A	  0x1B	/* SST 49LF003A device */