diff --git a/tools/build.ps1 b/tools/build.ps1
index 795b9b74ef..5aa826a065 100644
--- a/tools/build.ps1
+++ b/tools/build.ps1
@@ -99,7 +99,7 @@ catch {
 }
 Write-Host ">>> " -NoNewline -ForegroundColor green
 Write-Host "Installing packages to new venv ..."
-& pip -m pip install -U pip
+& python -m pip install -U pip
 & pip install -r .\requirements.txt
 
 Write-Host ">>> " -NoNewline -ForegroundColor green