diff --git a/chapter06/gcc-pass2.xml b/chapter06/gcc-pass2.xml
index d76b9d9af..ef2eff517 100644
--- a/chapter06/gcc-pass2.xml
+++ b/chapter06/gcc-pass2.xml
@@ -63,12 +63,6 @@ mv -v mpc-&mpc-version; mpc</userinput></screen>
   ;;
 esac</userinput></screen>
 
-    <!-- https://gcc.gnu.org/PR100017 -->
-    <para>Fix an issue causing failure cross-compiling libstdc++:</para>
-
-<screen><userinput remap="pre">sed 's/gnu++17/&amp; -nostdinc++/' \
-    -i libstdc++-v3/src/c++17/Makefile.in</userinput></screen>
-
     <para>Override the building rule of libgcc and libstdc++ headers, to
     allow building these libraries with POSIX threads support:</para>