diff --git a/dom0/qvm-core/qubes.py b/dom0/qvm-core/qubes.py
index d919fc76..87908e68 100755
--- a/dom0/qvm-core/qubes.py
+++ b/dom0/qvm-core/qubes.py
@@ -840,6 +840,9 @@ class QubesVm(object):
                 "{0}/qubes-block-devices".format(domain_path),
                 '')
 
+        xs.write('', "{0}/qubes-debug-mode".format(domain_path),
+                str(int(self.debug)))
+
         # Fix permissions
         xs.set_permissions('', '{0}/device'.format(domain_path),
                 [{ 'dom': xid }])