diff --git a/chapter08/gcc.xml b/chapter08/gcc.xml
index 28a39a770..ae085f0f1 100644
--- a/chapter08/gcc.xml
+++ b/chapter08/gcc.xml
@@ -122,8 +122,9 @@ su tester -c "PATH=$PATH make -k check"</userinput></screen>
     <ulink url="https://gcc.gnu.org/ml/gcc-testresults/"/>.</para>
 
     <para>In g++, three tests in constexpr-52830 are known to fail and
-    also to be treated as unexpected successes (XPASS) even though they
-    report 'internal compiler error'.</para>
+    also to be treated as unexpected successes (XPASS).  This is because
+    an <quote>internal compiler error</quote> on this test is fixed, but
+    the compiler still rejects some valid code.</para>
 
     <!--  https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96322
           https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71367 -->
@@ -155,6 +156,7 @@ su tester -c "PATH=$PATH make -k check"</userinput></screen>
       is not enabled in the kernel even though it is present on the CPU.
     </para></note-->
 
+    <!-- PR 91085, will be fixed in GCC 12. -->
     <para>Install the package and remove an unneeded directory:</para>
 
 <screen><userinput remap="install">make install