diff --git a/scripts/xterm-update.ps1 b/scripts/xterm-update.ps1
index 11c282de888..2eae7fffe77 100644
--- a/scripts/xterm-update.ps1
+++ b/scripts/xterm-update.ps1
@@ -1 +1,2 @@
-node $PSScriptRoot\xterm-update.js (Get-Location)
+$scriptPath = Join-Path $PSScriptRoot "xterm-update.js"
+node $scriptPath (Get-Location)