diff --git a/test/font/ttxdriver.mjs b/test/font/ttxdriver.mjs
index c820d8ccf..3e51caa4b 100644
--- a/test/font/ttxdriver.mjs
+++ b/test/font/ttxdriver.mjs
@@ -21,14 +21,9 @@ import { spawn } from "child_process";
 
 let ttxTaskId = Date.now();
 
-function runTtx(fontPath, registerOnCancel, callback) {
+function runTtx(fontPath, callback) {
   const ttx = spawn("ttx", [fontPath], { stdio: "ignore" });
   let ttxRunError;
-  registerOnCancel(function (reason) {
-    ttxRunError = reason;
-    callback(reason);
-    ttx.kill();
-  });
   ttx.on("error", function (errorTtx) {
     ttxRunError = errorTtx;
     callback(
@@ -43,14 +38,14 @@ function runTtx(fontPath, registerOnCancel, callback) {
   });
 }
 
-function translateFont(content, registerOnCancel, callback) {
+function translateFont(content, callback) {
   const buffer = Buffer.from(content, "base64");
   const taskId = (ttxTaskId++).toString();
   const fontPath = path.join(os.tmpdir(), `pdfjs-font-test-${taskId}.otf`);
   const resultPath = path.join(os.tmpdir(), `pdfjs-font-test-${taskId}.ttx`);
 
   fs.writeFileSync(fontPath, buffer);
-  runTtx(fontPath, registerOnCancel, function (err) {
+  runTtx(fontPath, function (err) {
     fs.unlinkSync(fontPath);
     if (err) {
       console.error(err);
diff --git a/test/test.mjs b/test/test.mjs
index 1080be89d..a6a1e76b4 100644
--- a/test/test.mjs
+++ b/test/test.mjs
@@ -842,22 +842,10 @@ function unitTestPostHandler(req, res) {
   });
   req.on("end", function () {
     if (pathname === "/ttx") {
-      var onCancel = null,
-        ttxTimeout = 10000;
-      var timeoutId = setTimeout(function () {
-        onCancel?.("TTX timeout");
-      }, ttxTimeout);
-      translateFont(
-        body,
-        function (fn) {
-          onCancel = fn;
-        },
-        function (err, xml) {
-          clearTimeout(timeoutId);
-          res.writeHead(200, { "Content-Type": "text/xml" });
-          res.end(err ? "<error>" + err + "</error>" : xml);
-        }
-      );
+      translateFont(body, function (err, xml) {
+        res.writeHead(200, { "Content-Type": "text/xml" });
+        res.end(err ? "<error>" + err + "</error>" : xml);
+      });
       return;
     }