Return Blank instead of False

Hi,

I have this code

Private Sub AttachButton_Click()

    Dim vaFiles As Variant

    vaFiles = Application.GetOpenFilename()
  
    TextBox1.Text = vaFiles

If i press cancel, the TextBox1 is populated with 'False' . This creates a problem when i try to attach the file to Outlook, as it cant find the file path. So i need to return "Blank" (nothing at all) when cancel is pressed.

Any suggestions?