diff --git a/src/categories/search.js b/src/categories/search.js
index 9e3d869974..50521d882a 100644
--- a/src/categories/search.js
+++ b/src/categories/search.js
@@ -5,7 +5,6 @@ const _ = require('lodash');
 const privileges = require('../privileges');
 const activitypub = require('../activitypub');
 const plugins = require('../plugins');
-const utils = require('../utils');
 const db = require('../database');
 
 module.exports = function (Categories) {
@@ -65,7 +64,7 @@ module.exports = function (Categories) {
 			return c1.order - c2.order;
 		});
 		searchResult.timing = (process.elapsedTimeSince(startTime) / 1000).toFixed(2);
-		searchResult.categories = categoryData.filter(c => cids.includes(c.cid));
+		searchResult.categories = categoryData.filter(c => cids.includes(String(c.cid)));
 		return searchResult;
 	};
 
@@ -82,7 +81,7 @@ module.exports = function (Categories) {
 			const split = data.split(':');
 			split.shift();
 			const cid = split.join(':');
-			return utils.isNumber(cid) ? parseInt(cid, 10) : cid;
+			return cid;
 		});
 	}