diff --git a/packages/examples/upgrade/static/ts/module.ts b/packages/examples/upgrade/static/ts/module.ts
index 27d5af51da..38abb49a04 100644
--- a/packages/examples/upgrade/static/ts/module.ts
+++ b/packages/examples/upgrade/static/ts/module.ts
@@ -105,7 +105,7 @@ class Ng1HeroComponentWrapper extends UpgradeComponent implements OnInit, OnChan
   imports: [BrowserModule, UpgradeModule]
 })
 class Ng2AppModule {
-  ngDoBootstrap() { /* this is a placeholder to stop the boostrapper from complaining */
+  ngDoBootstrap() { /* this is a placeholder to stop the bootstrapper from complaining */
   }
 }
 // #enddocregion
diff --git a/packages/platform-server/integrationtest/e2e/helloworld-spec.ts b/packages/platform-server/integrationtest/e2e/helloworld-spec.ts
index 67c822ffbd..594c9ab01a 100644
--- a/packages/platform-server/integrationtest/e2e/helloworld-spec.ts
+++ b/packages/platform-server/integrationtest/e2e/helloworld-spec.ts
@@ -12,7 +12,7 @@ import {verifyNoBrowserErrors} from './util';
 
 describe('Hello world E2E Tests', function() {
   it('should display: Hello world!', function() {
-    // Load the page without waiting for Angular since it is not boostrapped automatically.
+    // Load the page without waiting for Angular since it is not bootstrapped automatically.
     browser.driver.get(browser.baseUrl + 'helloworld');
 
     const style = browser.driver.findElement(by.css('style[ng-transition="hlw"]'));
diff --git a/packages/platform-server/integrationtest/e2e/transferstate-spec.ts b/packages/platform-server/integrationtest/e2e/transferstate-spec.ts
index a4eb06be98..c7d5cc8f61 100644
--- a/packages/platform-server/integrationtest/e2e/transferstate-spec.ts
+++ b/packages/platform-server/integrationtest/e2e/transferstate-spec.ts
@@ -12,7 +12,7 @@ import {verifyNoBrowserErrors} from './util';
 
 describe('TransferState', function() {
   it('should transfer component state', function() {
-    // Load the page without waiting for Angular since it is not boostrapped automatically.
+    // Load the page without waiting for Angular since it is not bootstrapped automatically.
     browser.driver.get(browser.baseUrl + 'transferstate');
 
     // Test the contents from the server.
diff --git a/packages/upgrade/test/static/integration/examples_spec.ts b/packages/upgrade/test/static/integration/examples_spec.ts
index 1a31e6f0e3..319f87d7d7 100644
--- a/packages/upgrade/test/static/integration/examples_spec.ts
+++ b/packages/upgrade/test/static/integration/examples_spec.ts
@@ -52,7 +52,7 @@ import {bootstrap, html, multiTrim} from '../test_helpers';
            imports: [BrowserModule, UpgradeModule]
          })
          class Ng2Module {
-           ngDoBootstrap() { /* this is a placeholder to stop the boostrapper from complaining */
+           ngDoBootstrap() { /* this is a placeholder to stop the bootstrapper from complaining */
            }
          }