\nodename{} must immediately follow \chapter{} to be handled correctly;
adding the \label{} broke that.
diff --git a/Doc/lib/libobjs.tex b/Doc/lib/libobjs.tex
index 450447b..8668eff 100644
--- a/Doc/lib/libobjs.tex
+++ b/Doc/lib/libobjs.tex
@@ -1,7 +1,6 @@
\chapter{Built-in Types, Exceptions and Functions}
-\label{builtin}
-
\nodename{Built-in Objects}
+\label{builtin}
Names for built-in exceptions and functions are found in a separate
symbol table. This table is searched last when the interpreter looks