set path

appveyor.yml

@@ -19,8 +19,8 @@ before_build:
 build_script:
 - ps: .\build.ps1 -Target "AppVeyor" -Platform "$env:platform" -Configuration "$env:configuration"
 after_build:
-- %USERPROFILE%\.nuget\packages\JetBrains.dotMemoryUnit.2.1.20150828.125449\tools\dotMemoryUnit.exe -targetExecutable="%xunit20%\xunit.console.x86.exe" -returnTargetExitCode  --"tests\Avalonia.LeakTests\bin\Release\Avalonia.LeakTests.dll"
-
+- cmd set PATH=%USERPROFILE%\.nuget\packages\JetBrains.dotMemoryUnit.2.1.20150828.125449\tools;%PATH%
+- dotMemoryUnit.exe -targetExecutable="%xunit20%\xunit.console.x86.exe" -returnTargetExitCode  --"tests\Avalonia.LeakTests\bin\Release\Avalonia.LeakTests.dll"
 - "SET PATH=C:\\Python34;C:\\Python34\\Scripts;%PATH%"
 - pip install codecov
 - codecov -f "./artifacts/coverage.xml"