diff --git a/omnibus/omnibus-test.ps1 b/omnibus/omnibus-test.ps1
index 57345ec07..a90610001 100644
--- a/omnibus/omnibus-test.ps1
+++ b/omnibus/omnibus-test.ps1
@@ -9,7 +9,7 @@ Write-Host "+++ Testing $Plan"
 
 # *********Debugging ***************
 Write-Host ":ruby: Validating Ruby can run"
-& $embedded_bin_dir\ruby --version
+& $embedded_bin_dir\ruby.exe --version
 If ($lastexitcode -ne 0) { Throw $lastexit }
 
 Write-Host ":bundler: Validating Bundler can run"