diff --git a/src/calibre/devices/hanlin/driver.py b/src/calibre/devices/hanlin/driver.py
index 3db55d05c5..f19135a7e7 100644
--- a/src/calibre/devices/hanlin/driver.py
+++ b/src/calibre/devices/hanlin/driver.py
@@ -119,25 +119,22 @@ class BOOX(HANLINV3):
     MAIN_MEMORY_VOLUME_LABEL  = 'BOOX Internal Memory'
     STORAGE_CARD_VOLUME_LABEL = 'BOOX Storage Card'
 
-    EBOOK_DIR_MAIN = ['MyBooks', 'MyBooks']
-    EXTRA_CUSTOMIZATION_MESSAGE = _('Directories to send e-books to on the device. '
-                    'The first directory is used for main memory. '
-                    'The second is used for cards.')
+    EBOOK_DIR_MAIN = ['MyBooks']
+    EXTRA_CUSTOMIZATION_MESSAGE = _('Comma separated list of directories to '
+            'send e-books to on the device. The first one that exists will '
+            'be used.')
     EXTRA_CUSTOMIZATION_DEFAULT = ', '.join(EBOOK_DIR_MAIN)
 
+    # EBOOK_DIR_CARD_A = 'MyBooks' ## Am quite sure we need this.
+
     def post_open_callback(self):
         opts = self.settings()
         dirs = opts.extra_customization
         if not dirs:
             dirs = self.EBOOK_DIR_MAIN
         else:
-            # will have at least one item ...
             dirs = [x.strip() for x in dirs.split(',')]
-        self.EBOOK_DIR_MAIN = dirs[0]
-        if len(dirs) > 1:
-            self.EBOOK_DIR_CARD_A = self.EBOOK_DIR_CARD_B = dirs[1]
-        else:
-            self.EBOOK_DIR_CARD_A = self.EBOOK_DIR_CARD_B = dirs[0]
+        self.EBOOK_DIR_MAIN = dirs
 
     def windows_sort_drives(self, drives):
         return drives