diff --git a/appveyor.yml b/appveyor.yml
index 422daddbcd..39d225f941 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -36,14 +36,14 @@ test_script:
       $env:CoreOutput = Split-Path -Parent (Get-PSOutput -Options (New-PSOptions -Publish))
       Write-Host -Foreground Green 'Run CoreCLR tests'
       $testResultsFile = "$pwd\TestsResults.xml"
-      & ("$env:CoreOutput\powershell.exe") -noprofile -c "Invoke-Pester test/powershell -OutputFormat NUnitXml -OutputFile $testResultsFile"
+      & ("$env:CoreOutput\powershell.exe") -noprofile -noninteractive -c "Invoke-Pester test/powershell -OutputFormat NUnitXml -OutputFile $testResultsFile"
       (New-Object 'System.Net.WebClient').UploadFile("https://ci.appveyor.com/api/testresults/nunit/$($env:APPVEYOR_JOB_ID)", (Resolve-Path $testResultsFile))
       #
       # FullCLR
       $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 -binDir $env:FullOutput -NoNewWindow -ArgumentList '-noprofile', '-command', "Import-Module .\src\Modules\Pester; Invoke-Pester test/fullCLR -OutputFormat NUnitXml -OutputFile $testResultsFileFullCLR"
+      Start-DevPSGitHub -binDir $env:FullOutput -NoNewWindow -ArgumentList '-noprofile', '-noninteractive', '-command', "Import-Module .\src\Modules\Pester; 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