diff --git a/documentation/content/en/books/porters-handbook/special/_index.adoc b/documentation/content/en/books/porters-handbook/special/_index.adoc
--- a/documentation/content/en/books/porters-handbook/special/_index.adoc
+++ b/documentation/content/en/books/porters-handbook/special/_index.adoc
@@ -1564,6 +1564,10 @@
 			false
 ....
 
+`DESKTOP_ENTRIES` are installed in the directory pointed to by the `DESKTOPDIR`
+variable.
+`DESKTOPDIR` defaults to [.filename]#${PREFIX}/share/applications#
+
 
 [[using-gnome]]
 == Using GNOME