diff --git a/README.md b/README.md
index 42cd060282..8b982a8bb0 100644
--- a/README.md
+++ b/README.md
@@ -103,6 +103,18 @@ This build will:
 
 Run as `mvn clean install`.
 
+### Building Documentation
+
+Open MCT Web's documentation is generated by an
+[npm](https://www.npmjs.com/)-based build:
+
+* `npm install` _(only needs to run once)_
+* `npm run docs`
+
+Documentation will be generated in `target/docs`. Note that diagram
+generation is dependent on having [Cairo](http://cairographics.org/download/)
+installed.
+
 # Glossary
 
 Certain terms are used throughout Open MCT Web with consistent meanings