diff --git a/index.js b/index.js
index e1b89de0..b62d6958 100644
--- a/index.js
+++ b/index.js
@@ -210,7 +210,8 @@ const mercurius = fp(async function (app, opts) {
       entityResolversFactory: undefined,
       subscriptionContextFn,
       keepAlive,
-      fullWsTransport
+      fullWsTransport,
+      additionalRouteProps: opts.additionalRouteProps
     })
   }
 
diff --git a/lib/routes.js b/lib/routes.js
index a6ab508b..4be90998 100644
--- a/lib/routes.js
+++ b/lib/routes.js
@@ -200,7 +200,8 @@ module.exports = async function (app, opts) {
     persistedQueryProvider,
     allowBatchedQueries,
     keepAlive,
-    fullWsTransport
+    fullWsTransport,
+    additionalRouteProps
   } = opts
 
   // Load the persisted query settings
@@ -293,6 +294,7 @@ module.exports = async function (app, opts) {
     method: 'GET',
     schema: getSchema,
     attachValidation: true,
+    ...additionalRouteProps,
     handler: async function (request, reply) {
       // Generate the context for this request
       if (contextFn) {
@@ -338,7 +340,8 @@ module.exports = async function (app, opts) {
 
   app.post(graphqlPath, {
     schema: postSchema(allowBatchedQueries),
-    attachValidation: true
+    attachValidation: true,
+    ...additionalRouteProps
   }, async function (request, reply) {
     // Generate the context for this request
     if (contextFn) {