Drive me INSANE (Dx8 sound)

[alkatran]

Alright, I've got this code... I don't understand how the error can happen:

I have a general "loadsound" sub, so I don't have to look at DX code, lalala... anyways:

Public Sub LoadSound(ByVal Path As String, ByRef Buffer As DirectSoundSecondaryBuffer8)
Dim DsDesc As DSBUFFERDESC
    
    DsDesc.lFlags = DSBCAPS_CTRLFREQUENCY Or DSBCAPS_CTRLPAN Or DSBCAPS_CTRLVOLUME
    
    Set Buffer = DSound.CreateSoundBufferFromFile(App.Path & Path, DsDesc)
'ERROR: byref argument type mismatch
'DsDesc is highlighted. what could cause this?
End Sub