diff --git a/scripts/build-project-ubuntu.ps1 b/scripts/build-project-ubuntu.ps1
index d32ef8a..0586204 100644
--- a/scripts/build-project-ubuntu.ps1
+++ b/scripts/build-project-ubuntu.ps1
@@ -1,6 +1,7 @@
 Set-Location build/make
+[Int32]$processorCount = [Environment]::ProcessorCount
 
-& make
+& make -j "$processorCount"
 
 if (!$?) {
     Write-Error "An error occured while trying to invoke ``make``"
diff --git a/scripts/build-project-win.ps1 b/scripts/build-project-win.ps1
index 66cecba..9bb2046 100644
--- a/scripts/build-project-win.ps1
+++ b/scripts/build-project-win.ps1
@@ -1,4 +1,4 @@
-[Int32]$processorCount = [Environment]::ProcessorCount;
+[Int32]$processorCount = [Environment]::ProcessorCount
 & msbuild build\vc\cgss.sln /p:"Configuration=$env:CONFIGURATION" /m:"$processorCount"
 
 if (!$?)