diff --git a/src/calibre/library/database2.py b/src/calibre/library/database2.py
index b5155368c7..bdcefd13a2 100644
--- a/src/calibre/library/database2.py
+++ b/src/calibre/library/database2.py
@@ -854,7 +854,6 @@ class LibraryDatabase2(LibraryDatabase, SchemaUpgrade, CustomColumns):
         mi.uuid        = row[fm['uuid']]
         mi.title_sort  = row[fm['sort']]
         mi.last_modified = row[fm['last_modified']]
-        mi.size        = row[fm['size']]
         formats = row[fm['formats']]
         if not formats:
             formats = None