diff --git a/conf.d/wato/rules.mk b/conf.d/wato/rules.mk
index 8d8b924..f04ffda 100644
--- a/conf.d/wato/rules.mk
+++ b/conf.d/wato/rules.mk
@@ -327,6 +327,19 @@ host_contactgroups = [
 ] + host_contactgroups
 
 
+globals().setdefault('host_groups', [])
+
+host_groups = [
+{'condition': {'host_name': ['syno.realm.local']},
+ 'id': 'a86798ad-f6cd-4d06-838a-a1d0499c9ebf',
+ 'options': {'comment': '2022-05-31 caelebfi: created rule\n',
+             'description': 'syno',
+             'disabled': False,
+             'docu_url': 'caelebfi'},
+ 'value': 'syno'},
+] + host_groups
+
+
 globals().setdefault('inventory_df_rules', [])
 
 inventory_df_rules = [