diff --git a/core-modules/01QubesHVm.py b/core-modules/01QubesHVm.py
index 9577fee9..65a8a1c8 100644
--- a/core-modules/01QubesHVm.py
+++ b/core-modules/01QubesHVm.py
@@ -25,6 +25,7 @@ import os
 import os.path
 import subprocess
 import sys
+import re
 
 from qubes.qubes import QubesVm,register_qubes_vm_class,xs,xc,dry_run
 from qubes.qubes import system_path,defaults