diff --git a/src/search.js b/src/search.js
index baf4d3c340..f56235cdd3 100644
--- a/src/search.js
+++ b/src/search.js
@@ -55,7 +55,7 @@ search.search = async function (data) {
 
 async function searchInContent(data) {
 	data.uid = data.uid || 0;
-
+	data.categories = data.categories || ['all'];
 	const [searchCids, searchUids] = await Promise.all([
 		getSearchCids(data),
 		getSearchUids(data),