diff --git a/Build/build.ps1 b/Build/build.ps1
index 02676982..d9fa8730 100644
--- a/Build/build.ps1
+++ b/Build/build.ps1
@@ -77,7 +77,7 @@ task Build -depends Clean {
   Write-Host "MSBuild path $script:msBuildPath"
 
   Write-Host "Copying source to working source directory $workingSourceDir"
-  robocopy $sourceDir $workingSourceDir /MIR /NP /XD bin obj TestResults AppPackages $packageDirs .vs artifacts /XF *.suo *.user *.lock.json | Out-Default
+  robocopy $sourceDir $workingSourceDir /MIR /NFL /NDL /NP /XD bin obj TestResults AppPackages $packageDirs .vs artifacts /XF *.suo *.user *.lock.json | Out-Default
   Copy-Item -Path $baseDir\LICENSE.md -Destination $workingDir\
   mkdir "$workingDir\Build" -Force
   Copy-Item -Path $buildDir\install.ps1 -Destination $workingDir\Build\