Hi, I have a simple bar chart, I need to change the font size of the axis values

the following is what i have and it doesnt work

ActiveChart.ChartArea.Select
ActiveChart.Axes(xlValue).Select
With Selection.Format.TextFrame2.TextRange.Font
.BaselineOffset = 0
.Size = 11
End With

error message: Method 'TextFrame2' of object 'ChartFormat' Failed

anything would be appreciated Thanks !