diff --git a/src/user/delete.js b/src/user/delete.js
index 9329e5150a..a4aac56c9f 100644
--- a/src/user/delete.js
+++ b/src/user/delete.js
@@ -234,7 +234,9 @@ module.exports = function (User) {
 	}
 
 	async function deleteImages(uid) {
-		const folder = path.join(nconf.get('upload_path'), 'profile', `uid-${uid}`);
-		await rimraf(folder);
+		if (utils.isNumber(uid)) {
+			const folder = path.join(nconf.get('upload_path'), 'profile', `uid-${uid}`);
+			await rimraf(folder);
+		}
 	}
 };