diff --git a/modules/@angular/core/src/application_ref.ts b/modules/@angular/core/src/application_ref.ts
index 3defc16114..da93fd0f88 100644
--- a/modules/@angular/core/src/application_ref.ts
+++ b/modules/@angular/core/src/application_ref.ts
@@ -94,13 +94,13 @@ export function createPlatform(injector: Injector): PlatformRef {
  * @experimental APIs related to application bootstrap are currently under review.
  */
 export function createPlatformFactory(
-    parentPlaformFactory: (extraProviders?: Provider[]) => PlatformRef, name: string,
+    parentPlatformFactory: (extraProviders?: Provider[]) => PlatformRef, name: string,
     providers: Provider[] = []): (extraProviders?: Provider[]) => PlatformRef {
   const marker = new OpaqueToken(`Platform: ${name}`);
   return (extraProviders: Provider[] = []) => {
     if (!getPlatform()) {
-      if (parentPlaformFactory) {
-        parentPlaformFactory(
+      if (parentPlatformFactory) {
+        parentPlatformFactory(
             providers.concat(extraProviders).concat({provide: marker, useValue: true}));
       } else {
         createPlatform(ReflectiveInjector.resolveAndCreate(
diff --git a/tools/public_api_guard/core/index.d.ts b/tools/public_api_guard/core/index.d.ts
index b32d844f9b..8851d4e517 100644
--- a/tools/public_api_guard/core/index.d.ts
+++ b/tools/public_api_guard/core/index.d.ts
@@ -305,7 +305,7 @@ export interface ContentChildrenDecorator {
 export declare function createPlatform(injector: Injector): PlatformRef;
 
 /** @experimental */
-export declare function createPlatformFactory(parentPlaformFactory: (extraProviders?: Provider[]) => PlatformRef, name: string, providers?: Provider[]): (extraProviders?: Provider[]) => PlatformRef;
+export declare function createPlatformFactory(parentPlatformFactory: (extraProviders?: Provider[]) => PlatformRef, name: string, providers?: Provider[]): (extraProviders?: Provider[]) => PlatformRef;
 
 /** @stable */
 export declare const CUSTOM_ELEMENTS_SCHEMA: SchemaMetadata;