diff --git a/core/modules/forum/config/forum.settings.yml b/core/modules/forum/config/forum.settings.yml
index 97c9c34530900794662e8e5c82fd55343feecf5e..3f0b30f72371f1d115be50ffc7ea7e4ea6c6f542 100644
--- a/core/modules/forum/config/forum.settings.yml
+++ b/core/modules/forum/config/forum.settings.yml
@@ -8,4 +8,4 @@ topics:
   hot_threshold: '15'
   order: '1'
   page_limit: '25'
-vocabulary: '0'
+vocabulary: forums