diff --git a/src/controllers/write/posts.js b/src/controllers/write/posts.js
index f61d33892a..c9c8d21104 100644
--- a/src/controllers/write/posts.js
+++ b/src/controllers/write/posts.js
@@ -101,9 +101,12 @@ Posts.deleteDiff = async (req, res) => {
 	}
 
 	const cid = await posts.getCidByPid(req.params.pid);
-	const isModerator = privileges.users.isModerator(cid, req.uid);
+	const [isAdmin, isModerator] = await Promise.all([
+		privileges.users.isAdministrator(req.uid),
+		privileges.users.isModerator(req.uid, cid),
+	]);
 
-	if (!isModerator) {
+	if (!(isAdmin || isModerator)) {
 		return helpers.formatApiResponse(403, res, new Error('[[error:no-privileges]]'));
 	}