diff --git a/bundles/systemd/items.py b/bundles/systemd/items.py
index f430fd7..4a95e5e 100644
--- a/bundles/systemd/items.py
+++ b/bundles/systemd/items.py
@@ -25,8 +25,6 @@ for name, unit in node.metadata.get('systemd/units').items():
                 "action:systemd-reload",
             ],
         }
-    else:
-        raise Exception(f'unknown unit extension: "{extension}"')
 
     files[path] = {
         'content': repo.libs.systemd.generate_unitfile(unit),