diff --git a/src/calibre/devices/kobo/driver.py b/src/calibre/devices/kobo/driver.py
index 74468845f6..bd96ecd3cd 100644
--- a/src/calibre/devices/kobo/driver.py
+++ b/src/calibre/devices/kobo/driver.py
@@ -193,7 +193,7 @@ class KOBO(USBMS):
         connection.commit()
 
         cursor.close()
-        if ImageID != None:
+        if ImageID == None:
             print "Error condition ImageID was not found"
             print "You likely tried to delete a book that the kobo has not yet added to the database"