diff --git a/javascript/fastify/app.js b/javascript/fastify/app.js
index e05c62f3149..4aeac34c724 100644
--- a/javascript/fastify/app.js
+++ b/javascript/fastify/app.js
@@ -11,6 +11,11 @@ app.get('/user/:id', function (request, reply) {
   reply.send(request.params.id);
 });
 
+app.addContentTypeParser('application/x-www-form-urlencoded', function (req, body, done) {
+  // The incoming request in the benchmark is empty anyway
+  done();
+});
+
 app.post('/user', function (request, reply) {
   reply.send();
 });