diff --git a/BUGs b/BUGs
index c36687c..17883fd 100644
--- a/BUGs
+++ b/BUGs
@@ -6,7 +6,6 @@
 * alter a condition, covertype, etc. and its not in drop-down list (even though db look via index is correct, e.g books.html shows updated covertype)
 * show books, only shows first author
 * starting on series remove button.  If we click a subbook, then remove series button needs to be clever (might need client-side validation / confirmation, eg. this is a subbook, you want to remove all of the sub books from the series?)
-* series: 112, book/sub-book ordering is broken
 * author,series, etc. do not have explicit ordering like sub-books... sort of irritating / needs code and DB fix
 	* add/remove authors, and after save they are ordered by author.id, not order of addition (prob. needs book_author_link to have an auth_num)
 * if you remove a series from a book, it won't appear in the series drop-down if it is the first 'missing' book in that series -- either reset the list, or show all series always?
diff --git a/main.py b/main.py
index 0725d50..ec1ff03 100644
--- a/main.py
+++ b/main.py
@@ -93,7 +93,7 @@ class Book(db.Model):
     # take actual parent book as there is no real associated sub_book_num data and can just use it
     parent = db.relationship('Book', secondary=Book_Sub_Book_Link.__table__, primaryjoin="Book.id==Book_Sub_Book_Link.sub_book_id", secondaryjoin="Book.id==Book_Sub_Book_Link.book_id" )
     # but use child_ref as sub_book_num is per book, and I can't connect an empty array of sub_book_nums to a child book array in "child"
-    child_ref = db.relationship('Book_Sub_Book_Link', secondary=Book_Sub_Book_Link.__table__, primaryjoin="Book.id==Book_Sub_Book_Link.book_id", secondaryjoin="Book.id==Book_Sub_Book_Link.sub_book_id" )
+    child_ref = db.relationship('Book_Sub_Book_Link', secondary=Book_Sub_Book_Link.__table__, primaryjoin="Book.id==Book_Sub_Book_Link.book_id", secondaryjoin="Book.id==Book_Sub_Book_Link.sub_book_id", order_by="Book_Sub_Book_Link.sub_book_num" )
 
 
     def IsParent(self):