Analysis :: How To Use EXCEPT In A Slicer

I tried to use the Except function like this:

SELECT NON EMPTY ORDER({[Bi Employee].[Employee Key].CHILDREN}, [Measures].[Bi Measure Count], DESC) ON AXIS(0),
       [Measures].[Bi Measure Count] ON AXIS(1)
FROM  [mycube]
WHERE  ([Bi Rank In Trip].[Rank Key].&[1],
        [Bi Date].[Year].&[2015],
        EXCEPT({[Bi Route].[Route Key].CHILDREN}, {[Bi Route].[Route Key].&[ 1005]}))

Because I want all Route_key except ' 1005'. But based on the results (which are not good), its clear to me that this function do not act the way I think. How can I exclude Route Key ' 1005' otherwise?