Cannot install Ganglia on EMR 4.0.0

I'm following this guide to install Spark on the latest AMI / EMR cluster:

http://ift.tt/1MUkbGC

I'd like to install Ganglia to monitor the cluster so I added Name=Ganglia to the list of applications to install:

aws emr create-cluster --name "Spark cluster" --release-label emr-4.0.0 --applications Name=Spark Name=Ganglia --ec2-attributes KeyName=myKey --instance-type m3.xlarge --instance-count 3 --use-default-roles

But I'm receiving the following error message:

A client error (ValidationException) occurred when calling the RunJobFlow operation: Specified application: Ganglia is invalid

Here are the versions that I am running:

aws --version
aws-cli/1.7.41 Python/2.7.7 Linux/2.6.32-431.29.2.el6.x86_64