diff --git a/lib/server/routes/buckets.js b/lib/server/routes/buckets.js
index 1dd49363..60c1a74a 100644
--- a/lib/server/routes/buckets.js
+++ b/lib/server/routes/buckets.js
@@ -271,7 +271,7 @@ BucketsRouter.prototype.updateBucketById = function (req, res, next) {
       return next(new errors.NotFoundError('Bucket not found'));
     }
 
-    const allowed = ['pubkeys', 'encryptionKey', 'publicPermissions'];
+    const allowed = ['pubkeys', 'encryptionKey', 'publicPermissions', 'maxFrameSize'];
 
     for (let prop in req.body) {
       if (allowed.indexOf(prop) !== -1) {