diff --git a/src/calibre/devices/kindle/driver.py b/src/calibre/devices/kindle/driver.py
index 826bbe98af..58e550b89a 100644
--- a/src/calibre/devices/kindle/driver.py
+++ b/src/calibre/devices/kindle/driver.py
@@ -340,7 +340,7 @@ class KINDLE2(KINDLE):
     # the .sdr sidecar folder
 
     PRODUCT_ID = [0x0002, 0x0004, 0x0324]
-    BCD        = [0x0100, 0x0310, 0x401]
+    BCD        = [0x0100, 0x0310, 0x401, 0x409]
     # SUPPORTS_SUB_DIRS = False # Apparently the Paperwhite doesn't like files placed in subdirectories
     # SUPPORTS_SUB_DIRS_FOR_SCAN = True