diff --git a/source/lib-intro.tex b/source/lib-intro.tex
index 2958545e4a..a1697a7cbb 100644
--- a/source/lib-intro.tex
+++ b/source/lib-intro.tex
@@ -1311,11 +1311,16 @@
 \pnum
 The facilities of the C standard library are provided in the
 \indextext{library!C standard}%
-additional headers shown in \tref{headers.cpp.c}.%
+additional headers shown in \tref{headers.cpp.c} and in \tref{c.headers}.%
 \begin{footnote}
 It is intentional that there is no \Cpp{} header
 for any of these C headers:
+\libnoheader{complex.h},
+\libnoheader{iso646.h},
+\libnoheader{stdatomic.h},
+\libnoheader{stdbool.h},
 \libnoheader{stdnoreturn.h},
+\libnoheader{tgmath.h},
 \libnoheader{threads.h}.
 \end{footnote}