ncoverexplorer nant task

I'm trying to use the ncoverexploer nant task. I've discovered that it attempts to run the NCoverExplorer.Console.exe with a parameter of /r:ModuleSummary instead of the numeric equivalent. This is causing the program to kick out an error.

Here is the nant debug output.

[ncoverexplorer] Working directory: c:\nantbuild
[ncoverexplorer] Arguments: /r:ModuleClassSummary /c:"NAnt.NCoverExplorer.config" "c:\nantbuild\target\Coverage\McK.Infra.UnitTest.Coverage.xml"
[ncoverexplorer] Starting 'tools/ncoverexplorer/NCoverExplorer.Console.exe (/r:ModuleClassSummar
y /c:"NAnt.NCoverExplorer.config" "c:\nantbuild\target\Coverage\McK.Infra.UnitTes
t.Coverage.xml" )' in 'c:\nantbuild'
[ncoverexplorer] -----------------------------------------
[ncoverexplorer] NCoverExplorer.Console 1.3.4.1702
[ncoverexplorer] -----------------------------------------
[ncoverexplorer] Input string was not in a correct format.
[ncoverexplorer] Deleting config file: NAnt.NCoverExplorer.config