diff --git a/src/calibre/gui2/library/models.py b/src/calibre/gui2/library/models.py
index 4e8e9a10bd..09a28fb04e 100644
--- a/src/calibre/gui2/library/models.py
+++ b/src/calibre/gui2/library/models.py
@@ -1056,8 +1056,8 @@ class DeviceBooksModel(BooksModel): # {{{
             if hasattr(cdata, 'image_path'):
                 img.load(cdata.image_path)
             elif cdata:
-                if isinstance(cdata, tuple):
-                    img.loadFromData(cdata[2])
+                if isinstance(cdata, (tuple, list)):
+                    img.loadFromData(cdata[-1])
                 else:
                     img.loadFromData(cdata)
             if img.isNull():