diff --git a/documentation/ref-manual/ref-classes.xml b/documentation/ref-manual/ref-classes.xml
index 67b2890171..12bf49b811 100644
--- a/documentation/ref-manual/ref-classes.xml
+++ b/documentation/ref-manual/ref-classes.xml
@@ -1103,7 +1103,12 @@
     <title><filename>mime.bbclass</filename></title>
 
     <para>
-        The GNOME (<filename>mime</filename>) class
+        The Multipurpose Internet Mail Extension (MIME)
+        (<filename>mime</filename>) class generates the proper
+        post-install and post-remove (postinst/postrm) scriptlets for packages
+        that install MIME type files.
+        These scriptlets call <filename>update-mime-database</filename> to add
+        the MIME types to the shared database.
     </para>
 </section>