diff --git a/documentation/ref-manual/migration.xml b/documentation/ref-manual/migration.xml
index dc24628e3c..9ec38e146e 100644
--- a/documentation/ref-manual/migration.xml
+++ b/documentation/ref-manual/migration.xml
@@ -157,7 +157,7 @@
                 <link linkend='var-LIC_FILES_CHKSUM'><filename>LIC_FILES_CHKSUM</filename></link>,
                 and so forth.
                 See the
-                "<link linkend='ref-classes-packagegroup'>Package Groups - packagegroup.bbclass</link>"
+                "<link linkend='ref-classes-packagegroup'><filename>packagegroup.bbclass</filename></link>"
                 section for further details.
             </para>
         </section>
@@ -886,7 +886,7 @@
 
         <para>
             For more information, see the
-            "<link linkend='ref-classes-packagegroup'>Package Groups - <filename>packagegroup.bbclass</filename></link>"
+            "<link linkend='ref-classes-packagegroup'><filename>packagegroup.bbclass</filename></link>"
             section.
         </para>
     </section>
diff --git a/documentation/ref-manual/ref-classes.xml b/documentation/ref-manual/ref-classes.xml
index 19660dee10..00706e5386 100644
--- a/documentation/ref-manual/ref-classes.xml
+++ b/documentation/ref-manual/ref-classes.xml
@@ -1896,23 +1896,26 @@
 </section>
 
 <section id='ref-classes-packagegroup'>
-    <title>Package Groups - <filename>packagegroup.bbclass</filename></title>
+    <title><filename>packagegroup.bbclass</filename></title>
 
     <para>
-        This class sets default values appropriate for package group recipes (e.g.
+        The <filename>packagegroup</filename> class sets default values
+        appropriate for package group recipes (e.g.
         <filename><link linkend='var-PACKAGES'>PACKAGES</link></filename>,
         <filename><link linkend='var-PACKAGE_ARCH'>PACKAGE_ARCH</link></filename>,
         <filename><link linkend='var-ALLOW_EMPTY'>ALLOW_EMPTY</link></filename>,
         and so forth).
         It is highly recommended that all package group recipes inherit this class.
     </para>
+
     <para>
         For information on how to use this class, see the
         "<ulink url='&YOCTO_DOCS_DEV_URL;#usingpoky-extend-customimage-customtasks'>Customizing Images Using Custom Package Groups</ulink>"
         section in the Yocto Project Development Manual.
     </para>
+
     <para>
-        Previously, this class was named <filename>task.bbclass</filename>.
+        Previously, this class was called the <filename>task</filename> class.
     </para>
 </section>