diff --git a/chapter05/gcc-pass1.xml b/chapter05/gcc-pass1.xml
index 3a537e014..a5aa62e45 100644
--- a/chapter05/gcc-pass1.xml
+++ b/chapter05/gcc-pass1.xml
@@ -76,9 +76,9 @@ esac</userinput></screen>
       <para>
         This example demonstrates the use of the
         <parameter>-i.orig</parameter> switch.  It makes the
-        <command>sed</command> copy the <filename>t-linux64</filename>
-        to <filename>t-linux64.orig</filename>, and then edit the
-        <filename>t-linux64</filename> inplace.  So you may run
+        <command>sed</command> copy the <filename>t-linux64</filename> file
+        to <filename>t-linux64.orig</filename>, and then edit the original
+        <filename>t-linux64</filename> file inplace.  So you may run
         <command>diff -u gcc/config/i386/t-linux64{.orig,}</command>
         to visualize the change done by the <command>sed</command> command
         afterwards.  We'll simply use <parameter>-i</parameter> (which just
diff --git a/chapter08/glibc.xml b/chapter08/glibc.xml
index 389f066ec..6a05007e6 100644
--- a/chapter08/glibc.xml
+++ b/chapter08/glibc.xml
@@ -50,7 +50,7 @@
 
 <screen><userinput remap="pre">patch -Np1 -i ../&glibc-fhs-patch;</userinput></screen>
 
-    <para>Now fix a security vulnerability:</para>
+    <para>Now fix an issue which may break Valgrind in BLFS:</para>
 
 <screen><userinput remap="pre">sed -e '/unistd.h/i #include &lt;string.h&gt;' \
     -e '/libc_rwlock_init/c\