Function Error: Compile error: Expected: list separator or )

Hi all,

Using Excel 2013.

My code is returning the error, not sure why?:

Compile error: Expected: list separator or )

Error here:

lngMessageResponse = GetUserMessageResponse(strPrompt:="The selected worksheet does not contain any data." & vbCrLf & _
                                                                                           "Would you like to try a different worksheet?", _
                                                                         strTitle:="Missing Data Warning, _
                                                                         lngButtons:=vbYesNo)

Calling this Function:

Public Function GetUserMessageResponse(strPrompt As String, _
                                                             strTitle As String, _
                                                             lngButtons As Long) As Long

Thoughts?

thx
w