diff --git a/chapter01/changelog.xml b/chapter01/changelog.xml
index 6c9232df2..b81e75b26 100644
--- a/chapter01/changelog.xml
+++ b/chapter01/changelog.xml
@@ -36,6 +36,16 @@
     </listitem>
 
 -->
+    <listitem>
+      <para>2010-09-22</para>
+      <itemizedlist>
+        <listitem>
+          <para>[matthew] Upgrade to M4-1.4.15. Fixes
+          <ulink url="&lfs-ticket-root;2744">#2744</ulink>.</para>
+        </listitem>
+      </itemizedlist>
+    </listitem>
+
     <listitem>
       <para>2010-09-18</para>
       <itemizedlist>
diff --git a/chapter01/whatsnew.xml b/chapter01/whatsnew.xml
index 294acb3c9..2ceb75647 100644
--- a/chapter01/whatsnew.xml
+++ b/chapter01/whatsnew.xml
@@ -124,9 +124,9 @@
     <!--<listitem>
       <para>Linux &linux-version;</para>
     </listitem>-->
-    <!--<listitem>
+    <listitem>
       <para>M4 &m4-version;</para>
-    </listitem>-->
+    </listitem>
     <!--<listitem>
       <para>Make &make-version;</para>
     </listitem>-->
diff --git a/chapter05/m4.xml b/chapter05/m4.xml
index 0aa067d5c..4be3a0f36 100644
--- a/chapter05/m4.xml
+++ b/chapter05/m4.xml
@@ -43,12 +43,6 @@
   <sect2 role="installation">
     <title>Installation of M4</title>
 
-    <para>Add a missing include directive that prevents M4 successfully building
-    against Glibc-&glibc-version;:</para>
-
-<screen><userinput remap="pre">sed -i -e '/"m4.h"/a\
-#include &lt;sys/stat.h&gt;' src/path.c</userinput></screen>
-
     <para>Prepare M4 for compilation:</para>
 
 <screen><userinput remap="configure">./configure --prefix=/tools</userinput></screen>
diff --git a/chapter06/m4.xml b/chapter06/m4.xml
index cf7934ee5..c22282c1d 100644
--- a/chapter06/m4.xml
+++ b/chapter06/m4.xml
@@ -40,12 +40,6 @@
   <sect2 role="installation">
     <title>Installation of M4</title>
 
-    <para>Add a missing include directive that prevents M4 successfully building
-    against Glibc-&glibc-version;:</para>
-
-<screen><userinput remap="pre">sed -i -e '/"m4.h"/a\
-#include &lt;sys/stat.h&gt;' src/path.c</userinput></screen>
-
     <para>Prepare M4 for compilation:</para>
 
 <screen><userinput remap="configure">./configure --prefix=/usr</userinput></screen>
diff --git a/packages.ent b/packages.ent
index 82648b7f9..2efa9f7ea 100644
--- a/packages.ent
+++ b/packages.ent
@@ -322,10 +322,10 @@
 <!ENTITY linux-headers-ch6-du "466 MB">
 <!ENTITY linux-headers-ch6-sbu "0.1 SBU">
 
-<!ENTITY m4-version "1.4.14">
+<!ENTITY m4-version "1.4.15">
 <!ENTITY m4-size "1,099 KB">
 <!ENTITY m4-url "&gnu;m4/m4-&m4-version;.tar.bz2">
-<!ENTITY m4-md5 "e6fb7d08d50d87e796069cff12a52a93">
+<!ENTITY m4-md5 "c7c32540bc3842d5550f88d47ef551d8">
 <!ENTITY m4-home "&gnu-software;m4/">
 <!ENTITY m4-ch5-du "11.6 MB">
 <!ENTITY m4-ch5-sbu "0.2 SBU">