Pass Elastic Beanstalk configuration without = sign

Question

So I am trying to turn on the G1 garbage collector using the terraform config template: https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/elastic_beanstalk_configuration_template#setting

All I need to do is pass in -XX:+UseG1GC to the JVM options, but I am getting an = sign injected between the name and value (and value is required).

Any tips are appreciated!