diff --git a/index.js b/index.js
index 05cbd9a..1d71818 100644
--- a/index.js
+++ b/index.js
@@ -37,11 +37,14 @@ try {
   }
   async function init() {
     try {
+      var checkNodeDebugType = function() {return null};
+      if (nextServerUtil.getNodeDebugType) checkNodeDebugType = nextServerUtil.getNodeDebugType;
+      if (nextServerUtil.checkNodeDebugType) checkNodeDebugType = nextServerUtil.checkNodeDebugType;
       initResponse = await routerServer.initialize({
         dir: process.cwd(),
         port: port,
         dev: dev,
-        isNodeDebugging: Boolean(nextServerUtil.checkNodeDebugType()) || false,
+        isNodeDebugging: Boolean(checkNodeDebugType()) || false,
         startServerSpan: undefined,
         experimentalHttpsServer: useHTTPS
       });
@@ -90,14 +93,14 @@ Mod.prototype.callback = function callback(req, res, serverconsole, responseEnd,
     try {
       if (nextError) throw nextError;
       if (!isPrepared) {
-        callServerError(503, "nextjs-integration/1.0.0");
+        callServerError(503, "nextjs-integration/1.1.0");
         serverconsole.errmessage("Next.js application not yet fully loaded.");
         return;
       }
       await handle(req, res);
       serverconsole.resmessage("Next.js request successfully processed.");
     } catch (err) {
-      callServerError(500, "nextjs-integration/1.0.0", err);
+      callServerError(500, "nextjs-integration/1.1.0", err);
     }
   }
 }