diff --git a/libvirtxml.go b/libvirtxml.go
index cd40375..5be20c1 100644
--- a/libvirtxml.go
+++ b/libvirtxml.go
@@ -38,7 +38,7 @@ func writeoutXml(domcfg *libvirtxml.Domain, filename string) error {
 	}
 
 	outfile := "/tmp/" + filename + ".xml"
-	regfile, err := os.OpenFile(outfile, os.O_RDWR|os.O_CREATE, 0666)
+	regfile, err := os.OpenFile(outfile, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
 	if err != nil {
 		return err
 	}