diff --git a/modules/item/back/methods/fixed-price/filter.js b/modules/item/back/methods/fixed-price/filter.js
index 3bc8ed6b0f..488c2441df 100644
--- a/modules/item/back/methods/fixed-price/filter.js
+++ b/modules/item/back/methods/fixed-price/filter.js
@@ -128,7 +128,7 @@ module.exports = Self => {
                 return {[param]: value};
             }
         });
-        if (ctx.req.query.showBadDates === 'true')
+        if (ctx.req.query?.showBadDates === 'true')
             where['fp.started'] = {gte: Date.vnNew()};
 
         filter = mergeFilters(filter, {where});