diff --git a/scripts/build-frontend.ps1 b/scripts/build-frontend.ps1
index 42b12ca8..6f49e0af 100644
--- a/scripts/build-frontend.ps1
+++ b/scripts/build-frontend.ps1
@@ -239,7 +239,7 @@ if (-not (Test-Path -LiteralPath $nodeExe) -or -not (Test-Path -LiteralPath $npm
     throw "The project-local Node $NodeVersion installation is incomplete."
 }
 
-$originalPath = $env:Path
+$originalPath = $env:PATH
 $originalNodeOptions = $env:NODE_OPTIONS
 $originalBuildTarget = $env:CAIWU_BUILD_TARGET
 $originalTerserWorkers = $env:CAIWU_TERSER_WORKERS
@@ -252,7 +252,7 @@ else {
 
 Push-Location $repoRoot
 try {
-    $env:Path = "$(if ($IsWindows) { $nodeRoot } else { Join-Path $nodeRoot 'bin' })$([IO.Path]::PathSeparator)$originalPath"
+    $env:PATH = "$(if ($IsWindows) { $nodeRoot } else { Join-Path $nodeRoot 'bin' })$([IO.Path]::PathSeparator)$originalPath"
     $env:NODE_OPTIONS = "--max-old-space-size=$MaxOldSpaceSizeMB"
     $env:CAIWU_TERSER_WORKERS = $TerserWorkers.ToString()
 
@@ -375,7 +375,7 @@ try {
 }
 finally {
     Pop-Location
-    $env:Path = $originalPath
+    $env:PATH = $originalPath
     $env:NODE_OPTIONS = $originalNodeOptions
     $env:CAIWU_BUILD_TARGET = $originalBuildTarget
     $env:CAIWU_TERSER_WORKERS = $originalTerserWorkers