diff --git a/README.md b/README.md
index 927cb5895a5398c4e881b592d81c0308c04009a0..1c0cb04f1cdf5a8bc2abe4c5415d0403af4a53aa 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,7 @@ As before, we have provided a VagrantFile in the `p5` directory. We have include
 2. Uncompress with `tar zxvf spark-2.0.1-bin-hadoop2.7.tar.gz`
 3. This will create a new directory: `spark-2.0.1-bin-hadoop2.7`. 
 4. Set the SPARKHOME variable: `export SPARKHOME=/vagrant/spark-2.0.1-bin-hadoop2.7`
+5. Install Java:  `sudo apt-get install default-jre`
 
 We are ready to use Spark.