--- a/lib/Warewulf/Provision/Pxe.pm 2019-06-17 14:01:40.000000000 -0700

+++ b/lib/Warewulf/Provision/Pxe.pm 2019-06-25 13:34:04.790845258 -0700

@@ -282,7 +282,9 @@

                         print IPXE "set base http://$master_ipaddr/WW/bootstrap\n";

                         print IPXE "initrd \${base}/$arch/$bootstrapid/initfs.gz\n";

                         print IPXE "kernel \${base}/$arch/$bootstrapid/kernel ro initrd=initfs.gz wwhostname=$hostname ";

-                        print IPXE join(" ", @kargs) . " ";

+                        if ($kargs[0]) { 

+                            print IPXE join(" ", @kargs) . " ";

+                        }

                         if ($console) {

                             print IPXE "console=tty0 console=$console ";

                         }

​