diff --git a/bundles/openhab/metadata.py b/bundles/openhab/metadata.py
index cf79055..4e3dafb 100644
--- a/bundles/openhab/metadata.py
+++ b/bundles/openhab/metadata.py
@@ -29,9 +29,7 @@ defaults = {
     },
     'backup-client': {
         'pre-hooks': {
-            'openhab': [
-                '/usr/share/openhab/runtime/bin/backup --full',
-            ],
+            'openhab': '/usr/share/openhab/runtime/bin/backup --full\n',
         },
     },
 }