diff --git a/packages/gasket-plugin-intl/lib/create.js b/packages/gasket-plugin-intl/lib/create.js
index d9929f436..b72dab8e7 100644
--- a/packages/gasket-plugin-intl/lib/create.js
+++ b/packages/gasket-plugin-intl/lib/create.js
@@ -26,6 +26,7 @@ module.exports = async function create(gasket, createContext) {
   };
 
   if (createContext.typescript) {
+    initialConfig.defaultLocale = 'en-US';
     initialConfig.managerFilename = gasket.config.intl.managerFilename;
   }
 
diff --git a/packages/gasket-plugin-intl/test/create.test.js b/packages/gasket-plugin-intl/test/create.test.js
index 74f55f55d..30b465db3 100644
--- a/packages/gasket-plugin-intl/test/create.test.js
+++ b/packages/gasket-plugin-intl/test/create.test.js
@@ -93,7 +93,8 @@ describe('create', function () {
     await plugin.hooks.create(mockGasket, mockContext);
     expect(addStub).toHaveBeenCalledWith('intl', {
       locales: ['en-US', 'fr-FR'],
-      managerFilename: 'intl.ts'
+      managerFilename: 'intl.ts',
+      defaultLocale: 'en-US'
     });
   });