Y Axis Label Alignment


I have a chart with the Y Axis on the right side of the chart.  It works fine, but the labes are still right aligned.  I have tried the following

- (void)sChart:(ShinobiChart *)chart alterTickMark:(SChartTickMark *)tickMark beforeAddingToAxis:(SChartAxis *)axis
    if (axis == chart.yAxis) {
        tickMark.tickLabel.textAlignment = UITextAlignmentLeft;

However the labels are still right aligned.   What do I need to do to left align the labels?