diff --git a/appveyor.yml b/appveyor.yml
index 09d6d51a1..4a9c7a135 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -57,8 +57,8 @@ install:
     Write-Host "Should run Coverity analysis = " -NoNewLine
     Write-Host $Env:SHOULD_RUN_COVERITY_ANALYSIS -ForegroundColor "Green"
 
-    $Env:SHOULD_PACKAGE_NUGET_ARTIFACT = $($Env:APPVEYOR_PULL_REQUEST_NUMBER -eq $null `
-                                               -and $Env:APPVEYOR_SCHEDULED_BUILD -eq $False)
+    $Env:SHOULD_PACKAGE_NUGET_ARTIFACT = $($($Env:APPVEYOR_PULL_REQUEST_NUMBER -eq $null) `
+                                               -and $($Env:APPVEYOR_SCHEDULED_BUILD -eq $False))
     Write-Host "Should package Nuget artifact = " -NoNewLine
     Write-Host $Env:SHOULD_PACKAGE_NUGET_ARTIFACT -ForegroundColor "Green"