diff --git a/src/SourceBuild/content/eng/build.ps1 b/src/SourceBuild/content/eng/build.ps1
index b5799f062..b7b4b4fca 100644
--- a/src/SourceBuild/content/eng/build.ps1
+++ b/src/SourceBuild/content/eng/build.ps1
@@ -32,7 +32,7 @@ function Get-Usage() {
 
 # Set the NUGET_PACKAGES dir so that we don't accidentally pull some packages from the global location,
 # They should be pulled from the local feeds.
-$env:NUGET_PACKAGES="$PSScriptRoot\prereqs\packages\restored\"
+$env:NUGET_PACKAGES="$RepoRoot\prereqs\packages\restored\"
 
 function Build {
   InitializeToolset