diff --git a/src/calibre/devices/bebook/driver.py b/src/calibre/devices/bebook/driver.py
index faef1e04e7..5c45bdbdde 100644
--- a/src/calibre/devices/bebook/driver.py
+++ b/src/calibre/devices/bebook/driver.py
@@ -22,7 +22,7 @@ class BEBOOK(USBMS):
 
     VENDOR_NAME = 'BEBOOK'
     WINDOWS_MAIN_MEM = 'BEBOOK_INTERNAL_MEMORY'
-    WINDOWS_CARD_MEM = 'BEBOOK_STORAGE_CARD'
+    WINDOWS_CARD_A_MEM = 'BEBOOK_STORAGE_CARD'
 
     OSX_MAIN_MEM = 'BeBook Internal Memory'
     OSX_CARD_MEM = 'BeBook Storage Card'