diff --git a/src/calibre/devices/kobo/driver.py b/src/calibre/devices/kobo/driver.py
index a1451bc0fc..6b3566ae8e 100644
--- a/src/calibre/devices/kobo/driver.py
+++ b/src/calibre/devices/kobo/driver.py
@@ -775,7 +775,7 @@ class KOBO(USBMS):
 
         if not ReadStatus == current_ReadStatus:
             t = (ReadStatus, datelastread, ContentID,)
-    
+
             try:
                 cursor.execute('update content set ReadStatus=?,FirstTimeReading=\'false\',DateLastRead=? where BookID is Null and ContentID = ?', t)
             except: