diff --git a/doc/README.md b/doc/README.md
index 13219ec66..c5c03b287 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -7,5 +7,8 @@ http://www.spdk.io/doc/
 Building the Documentation
 ==========================
 
-To convert the documentation into HTML, install Doxygen and mscgen and run `make` in the `doc`
-directory.  The output will be located in `doc/output/html`.
+To convert the documentation into HTML run `make` in the `doc`
+directory.  The output will be located in `doc/output/html`. Before
+running `make` ensure all pre-requisites are installed.  See
+[Installing Prerequisites](http://www.spdk.io/doc/getting_started.html)
+for more details.