diff --git a/index.js b/index.js
index 058b6a7..6d29b8c 100644
--- a/index.js
+++ b/index.js
@@ -21,7 +21,7 @@ function getSampleInterval (value, eventLoopResolution) {
   return monitorEventLoopDelay ? Math.max(eventLoopResolution, sampleInterval) : sampleInterval
 }
 
-async function underPressure (fastify, opts) {
+async function fastifyUnderPressure (fastify, opts) {
   opts = opts || {}
 
   const resolution = 10
@@ -261,10 +261,12 @@ function now () {
   return (ts[0] * 1e3) + (ts[1] / 1e6)
 }
 
-module.exports = fp(underPressure, {
+module.exports = fp(fastifyUnderPressure, {
   fastify: '4.x',
   name: '@fastify/under-pressure'
 })
+module.exports.default = fastifyUnderPressure
+module.exports.fastifyUnderPressure = fastifyUnderPressure
 
 module.exports.TYPE_EVENT_LOOP_DELAY = TYPE_EVENT_LOOP_DELAY
 module.exports.TYPE_EVENT_LOOP_UTILIZATION = TYPE_EVENT_LOOP_UTILIZATION
diff --git a/test/exports.test.js b/test/exports.test.js
new file mode 100644
index 0000000..a9d95f7
--- /dev/null
+++ b/test/exports.test.js
@@ -0,0 +1,33 @@
+'use strict'
+
+const { test } = require('tap')
+const fastifyUnderPressure = require('..')
+const { TYPE_EVENT_LOOP_DELAY, TYPE_EVENT_LOOP_UTILIZATION, TYPE_HEALTH_CHECK, TYPE_HEAP_USED_BYTES, TYPE_RSS_BYTES } = require('..')
+
+test('module.exports', t => {
+  t.plan(20)
+
+  t.equal(typeof fastifyUnderPressure.default, 'function')
+  t.equal(typeof fastifyUnderPressure.fastifyUnderPressure, 'function')
+  t.equal(fastifyUnderPressure.fastifyUnderPressure.name, 'fastifyUnderPressure')
+  t.equal(fastifyUnderPressure.fastifyUnderPressure, fastifyUnderPressure.fastifyUnderPressure.fastifyUnderPressure)
+  t.equal(fastifyUnderPressure.fastifyUnderPressure.default, fastifyUnderPressure.fastifyUnderPressure.fastifyUnderPressure)
+
+  t.equal(TYPE_EVENT_LOOP_DELAY, 'eventLoopDelay')
+  t.equal(TYPE_EVENT_LOOP_UTILIZATION, 'eventLoopUtilization')
+  t.equal(TYPE_HEALTH_CHECK, 'healthCheck')
+  t.equal(TYPE_HEAP_USED_BYTES, 'heapUsedBytes')
+  t.equal(TYPE_RSS_BYTES, 'rssBytes')
+
+  t.equal(fastifyUnderPressure.TYPE_RSS_BYTES, 'rssBytes')
+  t.equal(fastifyUnderPressure.TYPE_EVENT_LOOP_DELAY, 'eventLoopDelay')
+  t.equal(fastifyUnderPressure.TYPE_EVENT_LOOP_UTILIZATION, 'eventLoopUtilization')
+  t.equal(fastifyUnderPressure.TYPE_HEALTH_CHECK, 'healthCheck')
+  t.equal(fastifyUnderPressure.TYPE_HEAP_USED_BYTES, 'heapUsedBytes')
+
+  t.equal(fastifyUnderPressure.fastifyUnderPressure.TYPE_EVENT_LOOP_DELAY, 'eventLoopDelay')
+  t.equal(fastifyUnderPressure.fastifyUnderPressure.TYPE_EVENT_LOOP_UTILIZATION, 'eventLoopUtilization')
+  t.equal(fastifyUnderPressure.fastifyUnderPressure.TYPE_HEALTH_CHECK, 'healthCheck')
+  t.equal(fastifyUnderPressure.fastifyUnderPressure.TYPE_HEAP_USED_BYTES, 'heapUsedBytes')
+  t.equal(fastifyUnderPressure.fastifyUnderPressure.TYPE_RSS_BYTES, 'rssBytes')
+})
diff --git a/types/index.d.ts b/types/index.d.ts
index 4c5b5b5..9c374ef 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -1,18 +1,28 @@
 import {
   FastifyInstance,
-  FastifyPluginCallback,
+  FastifyPluginAsync,
   FastifyReply,
   FastifyRequest
 } from "fastify";
 
-export const TYPE_EVENT_LOOP_DELAY = 'eventLoopDelay'
-export const TYPE_HEAP_USED_BYTES = 'heapUsedBytes'
-export const TYPE_RSS_BYTES = 'rssBytes'
-export const TYPE_HEALTH_CHECK = 'healthCheck'
-export const TYPE_EVENT_LOOP_UTILIZATION = 'eventLoopUtilization'
+declare module "fastify" {
+  interface FastifyInstance {
+    memoryUsage(): { heapUsed: number; rssBytes: number; eventLoopDelay: number; eventLoopUtilized: number };
+  }
+}
+
+interface FastifyUnderPressureExports {
+  TYPE_EVENT_LOOP_DELAY: 'eventLoopDelay'
+  TYPE_HEAP_USED_BYTES: 'heapUsedBytes'
+  TYPE_RSS_BYTES: 'rssBytes'
+  TYPE_HEALTH_CHECK: 'healthCheck'
+  TYPE_EVENT_LOOP_UTILIZATION: 'eventLoopUtilization'
+}
+
+type FastifyUnderPressure = FastifyPluginAsync<fastifyUnderPressure.UnderPressureOptions> & FastifyUnderPressureExports
 
-declare namespace underPressure {
-  interface UnderPressureOptions {
+declare namespace fastifyUnderPressure {
+  export interface UnderPressureOptions {
     maxEventLoopDelay?: number;
     maxEventLoopUtilization?: number;
     maxHeapUsedBytes?: number;
@@ -26,16 +36,16 @@ declare namespace underPressure {
     exposeStatusRoute?: boolean | string | { routeOpts: object; routeSchemaOpts?: object; routeResponseSchemaOpts?: object; url?: string };
     customError?: Error;
   }
-}
 
-declare module "fastify" {
-  interface FastifyInstance {
-    memoryUsage(): { heapUsed: number; rssBytes: number; eventLoopDelay: number; eventLoopUtilized: number };
-  }
-}
+  export const TYPE_EVENT_LOOP_DELAY = 'eventLoopDelay'
+  export const TYPE_HEAP_USED_BYTES = 'heapUsedBytes'
+  export const TYPE_RSS_BYTES = 'rssBytes'
+  export const TYPE_HEALTH_CHECK = 'healthCheck'
+  export const TYPE_EVENT_LOOP_UTILIZATION = 'eventLoopUtilization'
 
-declare let underPressure: FastifyPluginCallback<
-  underPressure.UnderPressureOptions
->;
+  export const fastifyUnderPressure: FastifyUnderPressure
+  export { fastifyUnderPressure as default }
+}
 
-export default underPressure;
+declare function fastifyUnderPressure(...params: Parameters<FastifyUnderPressure>): ReturnType<FastifyUnderPressure>
+export = fastifyUnderPressure
diff --git a/types/index.test-d.ts b/types/index.test-d.ts
index 965d6ad..0b2ac8c 100644
--- a/types/index.test-d.ts
+++ b/types/index.test-d.ts
@@ -1,16 +1,17 @@
-import underPressure from "..";
+import fastifyUnderPressure, { fastifyUnderPressure as namedFastifyUnderPressure, TYPE_EVENT_LOOP_DELAY, TYPE_EVENT_LOOP_UTILIZATION, TYPE_HEALTH_CHECK, TYPE_HEAP_USED_BYTES, TYPE_RSS_BYTES } from "..";
 import fastify from "fastify";
+import { expectType } from "tsd";
 
 const server = fastify();
 
 () => {
-  server.register(underPressure, {
+  server.register(fastifyUnderPressure, {
     maxEventLoopDelay: 1000,
     maxHeapUsedBytes: 100000000,
     maxRssBytes: 100000000
   });
 
-  server.register(underPressure);
+  server.register(fastifyUnderPressure);
 
   server.get("/", (req, reply) => {
     reply.send({ hello: "world" });
@@ -22,7 +23,7 @@ const server = fastify();
 };
 
 () => {
-  server.register(underPressure, {
+  server.register(fastifyUnderPressure, {
     maxEventLoopDelay: 1000,
     message: "Under pressure!",
     retryAfter: 50
@@ -37,7 +38,7 @@ const server = fastify();
 };
 
 () => {
-  server.register(underPressure, {
+  server.register(fastifyUnderPressure, {
     healthCheck: async function (fastifyInstance) {
       // do some magic to check if your db connection is healthy, etc...
       return fastifyInstance.register === server.register;
@@ -47,21 +48,21 @@ const server = fastify();
 };
 
 () => {
-  server.register(underPressure, {
+  server.register(fastifyUnderPressure, {
     sampleInterval: 10
   });
 }
 
 () => {
-  server.register(underPressure, {
+  server.register(fastifyUnderPressure, {
     exposeStatusRoute: '/v2/status',
   });
 
-  server.register(underPressure, {
+  server.register(fastifyUnderPressure, {
     exposeStatusRoute: true
   });
 
-  server.register(underPressure, {
+  server.register(fastifyUnderPressure, {
     exposeStatusRoute: {
       routeOpts: {
         logLevel: 'silent',
@@ -71,7 +72,7 @@ const server = fastify();
     }
   });
 
-  server.register(underPressure, {
+  server.register(fastifyUnderPressure, {
     exposeStatusRoute: {
       routeOpts: {
         logLevel: 'silent'
@@ -79,7 +80,7 @@ const server = fastify();
     }
   });
 
-  server.register(underPressure, {
+  server.register(fastifyUnderPressure, {
     exposeStatusRoute: {
       routeOpts: {
         logLevel: 'silent'
@@ -90,7 +91,26 @@ const server = fastify();
     }
   })
 
-  server.register(underPressure, {
+  server.register(fastifyUnderPressure, {
     customError: new Error('custom error message')
   });
 };
+
+expectType<'eventLoopDelay'>(fastifyUnderPressure.TYPE_EVENT_LOOP_DELAY)
+expectType<'heapUsedBytes'>(fastifyUnderPressure.TYPE_HEAP_USED_BYTES)
+expectType<'rssBytes'>(fastifyUnderPressure.TYPE_RSS_BYTES)
+expectType<'healthCheck'>(fastifyUnderPressure.TYPE_HEALTH_CHECK)
+expectType<'eventLoopUtilization'>(fastifyUnderPressure.TYPE_EVENT_LOOP_UTILIZATION)
+
+expectType<'eventLoopDelay'>(namedFastifyUnderPressure.TYPE_EVENT_LOOP_DELAY)
+expectType<'heapUsedBytes'>(namedFastifyUnderPressure.TYPE_HEAP_USED_BYTES)
+expectType<'rssBytes'>(namedFastifyUnderPressure.TYPE_RSS_BYTES)
+expectType<'healthCheck'>(namedFastifyUnderPressure.TYPE_HEALTH_CHECK)
+expectType<'eventLoopUtilization'>(namedFastifyUnderPressure.TYPE_EVENT_LOOP_UTILIZATION)
+
+expectType<'eventLoopDelay'>(TYPE_EVENT_LOOP_DELAY)
+expectType<'heapUsedBytes'>(TYPE_HEAP_USED_BYTES)
+expectType<'rssBytes'>(TYPE_RSS_BYTES)
+expectType<'healthCheck'>(TYPE_HEALTH_CHECK)
+expectType<'eventLoopUtilization'>(TYPE_EVENT_LOOP_UTILIZATION)
+