diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 2c9ff85fc..03539f506 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1934,6 +1934,9 @@ importers:
       '@babel/plugin-proposal-decorators':
         specifier: ^7.21.0
         version: 7.24.7(@babel/core@7.25.2)
+      '@babel/plugin-transform-typescript':
+        specifier: ^7.21.3
+        version: 7.25.2(@babel/core@7.25.2)
       '@ember/optional-features':
         specifier: ^2.0.0
         version: 2.1.0
@@ -9168,6 +9171,9 @@ packages:
 
   /ajv-formats@2.1.1:
     resolution: {integrity: sha512-Wx0Kx52hxE7C18hkMEggYlEifqWZtYaRgouJor+WMdPnQyEK13vgEWyVNup7SoeeoLMsr4kf5h6dOW11I15MUA==}
+    peerDependenciesMeta:
+      ajv:
+        optional: true
     dependencies:
       ajv: 8.17.1
 
diff --git a/tests/scenarios/typescript-app-test.ts b/tests/scenarios/typescript-app-test.ts
index 5f2703f52..79e33eaa1 100644
--- a/tests/scenarios/typescript-app-test.ts
+++ b/tests/scenarios/typescript-app-test.ts
@@ -8,6 +8,31 @@ let typescriptApp = tsAppScenarios.map('typescript-app', project => {
   merge(project.files, {
     app: {
       components: {
+        'test-gts.gts': `
+            import Component from '@glimmer/component';
+            import { tracked } from '@glimmer/tracking';
+            import { action } from '@ember/object';
+            import { on } from '@ember/modifier';
+
+            interface Signature {
+              Element: HTMLDivElement;
+              Blocks: {
+                default: [number]
+              }
+            }
+
+            export default class Incrementer extends Component<Signature> {
+              @tracked count = 0;
+
+              @action increment() { this.count++ }
+              <template>
+                <div ...attributes>
+                  <button {{on 'click' this.increment}}>increment</button>
+                  {{yield this.count}}
+                </div>
+              </template>
+            }
+        `,
         'incrementer.ts': `
             import Component from '@glimmer/component';
             import { tracked } from '@glimmer/tracking';
@@ -36,6 +61,29 @@ let typescriptApp = tsAppScenarios.map('typescript-app', project => {
     },
     tests: {
       rendering: {
+        'gts-test.gts': `
+            import { module, test } from 'qunit';
+            import { setupRenderingTest } from 'ember-qunit';
+            import { render, click } from '@ember/test-helpers';
+            import TestGts from '/app/components/test-gts';
+
+            module('Rendering', function (hooks) {
+              setupRenderingTest(hooks);
+
+              test('increments', async function (assert) {
+                await render(<template>
+                  <TestGts as |count|>
+                    <out>{{count}}</out>
+                  </TestGts>
+                </template>);
+
+                assert.dom('out').hasText('0');
+
+                await click('button');
+                assert.dom('out').hasText('1');
+              });
+            });
+          `,
         'incrementer-test.ts': `
             import { module, test } from 'qunit';
             import { setupRenderingTest } from 'ember-qunit';
diff --git a/tests/ts-app-template/babel.config.cjs b/tests/ts-app-template/babel.config.cjs
index 29a153bfc..e6248182d 100644
--- a/tests/ts-app-template/babel.config.cjs
+++ b/tests/ts-app-template/babel.config.cjs
@@ -2,6 +2,7 @@ const { babelCompatSupport, templateCompatSupport } = require('@embroider/compat
 
 module.exports = {
   plugins: [
+    ['@babel/plugin-transform-typescript'],
     [
       'babel-plugin-ember-template-compilation',
       {
diff --git a/tests/ts-app-template/package.json b/tests/ts-app-template/package.json
index 2b35c5725..37dc2f460 100644
--- a/tests/ts-app-template/package.json
+++ b/tests/ts-app-template/package.json
@@ -30,6 +30,7 @@
   },
   "devDependencies": {
     "@babel/core": "^7.22.20",
+    "@babel/plugin-transform-typescript": "^7.21.3",
     "@babel/eslint-parser": "^7.21.3",
     "@babel/plugin-proposal-decorators": "^7.21.0",
     "@ember/optional-features": "^2.0.0",