diff --git a/src/calibre/devices/bambook/driver.py b/src/calibre/devices/bambook/driver.py
index f251310d77..b3a552b33c 100644
--- a/src/calibre/devices/bambook/driver.py
+++ b/src/calibre/devices/bambook/driver.py
@@ -59,7 +59,7 @@ class BAMBOOK(DeviceConfig, DevicePlugin):
 
     def reset(self, key='-1', log_packets=False, report_progress=None,
             detected_device=None) :
-        self.open()
+        self.open(None)
 
     def open(self, library_uuid):
         # Make sure the Bambook library is ready