ConfirmationDialog translation

I'm using ConfirmationDialog to show a confirmation modal when user clicks a button. That's the method I use:

confirmClick: function(eventName, modelMethod, model, tag) {
	this.showConfirmationDialog(this.get("Resources.Strings.ConfirmMessage"),
	function(returnCode) {
		if (returnCode === this.Terrasoft.MessageBoxButtons.YES.returnCode) {
			this.onProcessActionButtonClick(eventName, modelMethod, model, tag);
		}
	},
	[this.Terrasoft.MessageBoxButtons.YES.returnCode, this.Terrasoft.MessageBoxButtons.NO.returnCode],
	null);
}

The problem is that the YES and NO buttons don't get translated to my language:

Do you know what should I do to translate them?