diff --git a/website/common/script/libs/shops.js b/website/common/script/libs/shops.js
index 553ba3588d..a5e0dfa80d 100644
--- a/website/common/script/libs/shops.js
+++ b/website/common/script/libs/shops.js
@@ -364,7 +364,7 @@ shops.getTimeTravelersCategories = function getTimeTravelersCategories (user, la
       backgroundCategory.items.push(item);
     }
   }
-  if (backgroundCategory.length > 0) {
+  if (backgroundCategory.items.length > 0) {
     categories.push(backgroundCategory);
   }