diff --git a/src/providers/firebase_sdk_auth_backend.ts b/src/providers/firebase_sdk_auth_backend.ts
index 0c97ef1df..663700250 100644
--- a/src/providers/firebase_sdk_auth_backend.ts
+++ b/src/providers/firebase_sdk_auth_backend.ts
@@ -94,7 +94,7 @@ export class FirebaseSdkAuthBackend extends AuthBackend {
   }
 
   getRedirectResult(): Observable<firebase.auth.UserCredential> {
-    return Observable.fromPromise(<Promise<any>>this._fbAuth.getRedirectResult());
+    return Observable.fromPromise(<Promise<any>>Promise.resolve(this._fbAuth.getRedirectResult()));
   }
 
   private _enumToAuthProvider(providerId: AuthProviders): firebase.auth.AuthProvider | FirebaseOAuthProvider {