Update backup.py
diff --git a/staffeln/conductor/backup.py b/staffeln/conductor/backup.py
index 5e76e48..f1630a5 100755
--- a/staffeln/conductor/backup.py
+++ b/staffeln/conductor/backup.py
@@ -25,7 +25,7 @@
 
 def check_vm_backup_metadata(metadata):
     if not CONF.conductor.backup_metadata_key in metadata:
-        return False
+        return True
     return metadata[CONF.conductor.backup_metadata_key].lower() in ["true"]