diff --git a/index.js b/index.js
index ec3b07d..6315586 100644
--- a/index.js
+++ b/index.js
@@ -33,7 +33,9 @@ function replyAcceptMethod () {
 function fastifyAccepts (fastify, options, done) {
   fastify.decorateRequest('accepts', acceptsMethod)
 
-  methodNames.forEach(methodName => {
+  const methodNamesLength = methodNames.length
+  for (let i = 0; i < methodNamesLength; i += 1) {
+    const methodName = methodNames[i]
     // Defining methods this way to ensure named functions show in stack traces
     fastify.decorateRequest(methodName, {
       [methodName]: function (arr) {
@@ -42,12 +44,13 @@ function fastifyAccepts (fastify, options, done) {
         return acceptsObject[methodName](arr)
       }
     }[methodName])
-  })
+  }
 
   if (options.decorateReply === true) {
     fastify.decorateReply('requestAccepts', replyAcceptMethod)
 
-    methodNames.forEach(methodName => {
+    for (let i = 0; i < methodNamesLength; i += 1) {
+      const methodName = methodNames[i]
       const capitalizedMethodName = methodName.replace(/(?:^|\s)\S/gu, a => a.toUpperCase())
       const replyMethodName = 'request' + capitalizedMethodName
       const acceptsMethodName = 'accepts' + capitalizedMethodName
@@ -59,7 +62,7 @@ function fastifyAccepts (fastify, options, done) {
           return acceptsObject[methodName](arr)
         }
       }[acceptsMethodName])
-    })
+    }
   }
 
   done()