diff --git a/src/calibre/devices/android/driver.py b/src/calibre/devices/android/driver.py
index 7f778997bb..7e6ef88d8a 100644
--- a/src/calibre/devices/android/driver.py
+++ b/src/calibre/devices/android/driver.py
@@ -42,7 +42,7 @@ class ANDROID(USBMS):
                        0xcac  : HTC_BCDS,
                        0xccf  : HTC_BCDS,
                        0x2910 : HTC_BCDS,
-                       0xff9  : [0x9999],
+                       0xff9  : HTC_BCDS + [0x9999],
             },
 
             # Eken