diff --git a/e2e/angular-core/src/ng-add.test.ts b/e2e/angular-core/src/ng-add.test.ts
index 6448a93401afd..4c25c0a3f38c6 100644
--- a/e2e/angular-core/src/ng-add.test.ts
+++ b/e2e/angular-core/src/ng-add.test.ts
@@ -148,6 +148,7 @@ describe('convert Angular CLI workspace to an Nx workspace', () => {
       cli: {
         packageManager: packageManager,
       },
+      defaultProject: project,
       implicitDependencies: {
         '.eslintrc.json': '*',
         'package.json': {
diff --git a/packages/angular/src/generators/ng-add/__snapshots__/migrate-from-angular-cli.spec.ts.snap b/packages/angular/src/generators/ng-add/__snapshots__/migrate-from-angular-cli.spec.ts.snap
index 93c10fffe14a2..aa6e220520722 100644
--- a/packages/angular/src/generators/ng-add/__snapshots__/migrate-from-angular-cli.spec.ts.snap
+++ b/packages/angular/src/generators/ng-add/__snapshots__/migrate-from-angular-cli.spec.ts.snap
@@ -44,6 +44,7 @@ Object {
   "affected": Object {
     "defaultBase": "main",
   },
+  "defaultProject": "app1",
   "implicitDependencies": Object {
     ".eslintrc.json": "*",
     "package.json": Object {
diff --git a/packages/angular/src/generators/ng-add/migrate-from-angular-cli.spec.ts b/packages/angular/src/generators/ng-add/migrate-from-angular-cli.spec.ts
index 52c7adf357894..b98c9c1679446 100644
--- a/packages/angular/src/generators/ng-add/migrate-from-angular-cli.spec.ts
+++ b/packages/angular/src/generators/ng-add/migrate-from-angular-cli.spec.ts
@@ -241,6 +241,11 @@ describe('workspace', () => {
       ).not.toBeDefined();
     });
 
+    it('should set the default project correctly', async () => {
+      await migrateFromAngularCli(tree, {});
+      expect(readJson(tree, 'nx.json').defaultProject).toBe('myApp');
+    });
+
     it('should create nx.json', async () => {
       await migrateFromAngularCli(tree, { defaultBase: 'main' });
       expect(readJson(tree, 'nx.json')).toMatchSnapshot();
diff --git a/packages/angular/src/generators/ng-add/migrate-from-angular-cli.ts b/packages/angular/src/generators/ng-add/migrate-from-angular-cli.ts
index 9d30fea4f6f0f..14ccb3ea393fd 100755
--- a/packages/angular/src/generators/ng-add/migrate-from-angular-cli.ts
+++ b/packages/angular/src/generators/ng-add/migrate-from-angular-cli.ts
@@ -3,8 +3,10 @@ import {
   formatFiles,
   installPackagesTask,
   readJson,
+  readWorkspaceConfiguration,
   Tree,
   updateJson,
+  updateWorkspaceConfiguration,
 } from '@nrwl/devkit';
 import { nxVersion } from '../../utils/versions';
 import type { GeneratorOptions } from './schema';
@@ -36,6 +38,8 @@ export async function migrateFromAngularCli(
   const projects = getAllProjects(tree);
   const options = normalizeOptions(tree, rawOptions, projects);
 
+  const defaultProject = projects.apps.find((app) => app.config.root === '');
+
   if (options.preserveAngularCliLayout) {
     addDependenciesToPackageJson(
       tree,
@@ -103,6 +107,14 @@ export async function migrateFromAngularCli(
     await formatFiles(tree);
   }
 
+  if (defaultProject) {
+    const workspaceConfig = readWorkspaceConfiguration(tree);
+    updateWorkspaceConfiguration(tree, {
+      ...workspaceConfig,
+      defaultProject: defaultProject.name,
+    });
+  }
+
   if (!options.skipInstall) {
     return () => {
       installPackagesTask(tree);