diff --git a/scripts/ci/prep.win.ps1 b/scripts/ci/prep.win.ps1
index eb787b4af..8d086fccd 100644
--- a/scripts/ci/prep.win.ps1
+++ b/scripts/ci/prep.win.ps1
@@ -25,4 +25,9 @@ if ($ARCH -eq 5) {
     Write-Host "Detected x86_64 architecture"
     mc cp R2/sling/bin/sling_prep/sling_prep_windows_amd64.exe .
     .\sling_prep_windows_amd64.exe
-}
\ No newline at end of file
+}
+
+if ($LASTEXITCODE -ne 0) {
+    Write-Host "Error: Last command exited with non-zero status code: $LASTEXITCODE"
+    exit 1
+}