diff --git a/appveyor.yml b/appveyor.yml
index 4583381fa0..f743073eb4 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -43,7 +43,7 @@ test_script:
       $env:FullOutput = Split-Path -Parent (Get-PSOutput -Options (New-PSOptions -FullCLR))
       Write-Host -Foreground Green 'Run FullCLR tests'
       $testResultsFileFullCLR = "$pwd\TestsResults.FullCLR.xml"
-      Start-DevPSGitHub -NoNewWindow -ArgumentList '-noprofile', '-noninteractive', '-command', "`$env:PSModulePath = Join-Path `$env:DEVPATH Modules; Invoke-Pester test/fullCLR -OutputFormat NUnitXml -OutputFile $testResultsFileFullCLR"
+      Start-DevPowerShell -NoNewWindow -ArgumentList '-noprofile', '-noninteractive' -Command "Invoke-Pester test/fullCLR -OutputFormat NUnitXml -OutputFile $testResultsFileFullCLR"
       (New-Object 'System.Net.WebClient').UploadFile("https://ci.appveyor.com/api/testresults/nunit/$($env:APPVEYOR_JOB_ID)", (Resolve-Path $testResultsFileFullCLR))
       #
       # Fail the build, if tests failed