diff --git a/core/storage/xen.py b/core/storage/xen.py
index 5ff553d9..361b6324 100644
--- a/core/storage/xen.py
+++ b/core/storage/xen.py
@@ -26,6 +26,7 @@ import os
 import os.path
 import subprocess
 import sys
+import re
 
 from qubes.storage import QubesVmStorage
 from qubes.qubes import QubesException