Hi there urgent request friends

How does one enable a command button Sub if and only if the tick box has been checked on a user form???
I've got the following but it seems to accept info even if the check box is not checked.

Private Sub chkbxVerify_Click()
If chkbxVerify.Value = True Then cmdAddItem.Enabled
If chkbxVerify.Value = False Then MsgBox ("Please check the verification box", vbOKCancel, "Checkbox Verification Error")
End Sub

Thanks in advance!!!!