diff --git a/BUGs b/BUGs
index 5f36f48..71d902e 100644
--- a/BUGs
+++ b/BUGs
@@ -2,6 +2,7 @@
 
 #### BUGS (next-23)
 BUG-21: parent series now showing all books (thomas covenant series)
+BUG-23: saving a book with a sub? or maybe just saving more than once? is complaining about removing from a series that we have never added
 
 ### DB/back-end