diff --git a/README.md b/README.md
index 8a8b8b8..51e1905 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,11 @@ build script
 
 the build script takes care of concatenating and minifying all scripts and styles. it uses [gruntjs](http://gruntjs.com/).
 
-please make sure that both [nodejs](http://nodejs.org/) and grunt-cli are [set up properly](http://gruntjs.com/getting-started) on your machine. to build, run ```grunt production``` from within the ```build/``` folder. the optimized files will get copied to the ```production/``` folder.
+please make sure that both [nodejs](http://nodejs.org/) and grunt-cli are [set up properly](http://gruntjs.com/getting-started) on your machine.
+
+run ```npm install``` from within the ```build/``` folder to install the dependencies of the build script.
+
+to build, run ```grunt production``` from within the ```build/``` folder. the optimized files will get copied to the ```production/``` folder.
 
 third party code used in this experiment
 ---