diff --git a/cloudinit/workspace.go b/cloudinit/workspace.go
index 29e8df0..9659765 100644
--- a/cloudinit/workspace.go
+++ b/cloudinit/workspace.go
@@ -62,5 +62,5 @@ func PersistScriptInWorkspace(script Script, workspace string) (string, error) {
 
 func PersistScriptUnitNameInWorkspace(name string, workspace string) error {
 	unitPath := path.Join(workspace, "scripts", "unit-name")
-	return ioutil.WriteFile(unitPath, []byte(name), 644)
+	return ioutil.WriteFile(unitPath, []byte(name), 0644)
 }