diff --git a/build/scripts/build-utils.ps1 b/build/scripts/build-utils.ps1
index 160f53cc6f39df70aadab2c78408f109519f3df5..c49407b832930f1afcd0083889cfff5c96b4a33c 100644
--- a/build/scripts/build-utils.ps1
+++ b/build/scripts/build-utils.ps1
@@ -287,7 +287,7 @@ function Get-PackageDir([string]$name, [string]$version = "") {
     }
 
     $p = Get-PackagesDir
-    $p = Join-Path $p $name
+    $p = Join-Path $p $name.ToLowerInvariant()
     $p = Join-Path $p $version
     return $p
 }