diff --git a/chapter06/coreutils.xml b/chapter06/coreutils.xml
index fdd097998..026e806e2 100644
--- a/chapter06/coreutils.xml
+++ b/chapter06/coreutils.xml
@@ -56,7 +56,7 @@
    <!-- this has been fixed in upstream gnulib, when a new version of
    coreutils is released, please check #4055 to see if the change has been
    picked up in this package -->
-   <para>Suppress a test which on some machines can loop forever.</para>
+   <para>Suppress a test which on some machines can loop forever:</para>
 
 <screen><userinput remap="pre">sed -i '/test.lock/s/^/#/' gnulib-tests/gnulib.mk</userinput></screen>
 
diff --git a/chapter06/findutils.xml b/chapter06/findutils.xml
index a13fec4eb..4c9e1da8d 100644
--- a/chapter06/findutils.xml
+++ b/chapter06/findutils.xml
@@ -46,7 +46,7 @@
    <!-- this has been fixed in upstream gnulib, when a new version of
    findutils is released, please check #4055 to see if the change has been
    picked up in this package -->
-   <para>Suppress a test which on some machines can loop forever.</para>
+   <para>First, suppress a test which on some machines can loop forever:</para>
 
 <screen><userinput remap="pre">sed -i 's/test-lock..EXEEXT.//' gettext-tools/gnulib-tests/Makefile.in</userinput></screen>
 
diff --git a/chapter06/gettext.xml b/chapter06/gettext.xml
index ef8cd2633..630febf1d 100644
--- a/chapter06/gettext.xml
+++ b/chapter06/gettext.xml
@@ -46,8 +46,8 @@
    <!-- this has been fixed in upstream gnulib, when a new version of
    gettext is released, please check #4055 to see if the change has been
    picked up in this package -->
-   <para>Suppress two invocations of test-lock which on some machines
-   can loop forever.</para>
+   <para>First, suppress two invocations of test-lock which on some machines
+   can loop forever:</para>
 
 <screen><userinput remap="pre">sed -i '/^TESTS =/d' gettext-runtime/tests/Makefile.in &amp;&amp;
 sed -i 's/test-lock..EXEEXT.//' gettext-tools/gnulib-tests/Makefile.in</userinput></screen>