False positive on AWS.EBS.EKM.Medium.0682

[davidhenar]

I have the following:

Violation Details -

    Description    :        Enable AWS EBS Snapshot Encryption
    File           :        main.tf
    Module Name    :        root
    Plan Root      :        .\
    Line           :        1
    Severity       :        HIGH
    Rule Name      :        ebsSnapshotDisabled
    Rule ID        :        AC_AWS_0459
    Resource Name  :        main
    Resource Type  :        aws_ebs_volume
    Category       :        Data Protection

I get this error in the following module:

resource "aws_ebs_volume" "main" {
  availability_zone = var.availability_zone
}

resource "aws_ebs_snapshot" "snapshot" {
  volume_id = aws_ebs_volume.main.id
}

Am I missing something?