diff --git a/archive/promotions.md b/archive/promotions.md
index 76a63be..7202295 100644
--- a/archive/promotions.md
+++ b/archive/promotions.md
@@ -1,5 +1,6 @@
 ---
 layout: archive
 lang: es
+which_category: promotions
 title: Publicaciones de promociones
 ---