diff --git a/src/client/theme-default/components/AlgoliaSearchBox.vue b/src/client/theme-default/components/AlgoliaSearchBox.vue
index c2952584..e6059624 100644
--- a/src/client/theme-default/components/AlgoliaSearchBox.vue
+++ b/src/client/theme-default/components/AlgoliaSearchBox.vue
@@ -70,7 +70,7 @@ function initialize(userOptions: any) {
         // pass a custom lang facetFilter to allow multiple language search
         // https://github.com/algolia/docsearch-configs/pull/3942
         facetFilters: facetFilters.concat(
-          (userOptions.searchParameters || {}).facetFilters || []
+          userOptions.searchParameters?.facetFilters || []
         )
       }),