Hi, In
8.11.5 Class Definition Protocol in https://www.gnu.org/software/guile/manual/html_node/Class-Definition-Protocol.html the tree of definitions, contains entry: * remove-class-accessors (generic) I believe this should be instead: * remove-class-accessors! (generic) (with exclamation mark) as explained in later chapter: 8.12.3 Customizing Class Redefinition in https://www.gnu.org/software/guile/manual/html_node/Customizing-Class-Redefinition.html Cheers, Witold