diff --git a/modules/playground/src/bootstrap.ts b/modules/playground/src/bootstrap.ts
index 1c69c2dbc3..bcc91ef2a8 100644
--- a/modules/playground/src/bootstrap.ts
+++ b/modules/playground/src/bootstrap.ts
@@ -27,7 +27,7 @@ declare var System: any;
           '@angular/router': '/packages-dist/router/bundles/router.umd.js',
           '@angular/router-deprecated': '/packages-dist/router-deprecated/bundles/router-deprecated.umd.js',
           '@angular/core/src/facade': '/all/@angular/core/src/facade',
-          'rxjs': location.pathname.replace(/index\.html$/, '') + 'rxjs'
+          'rxjs': location.pathname.replace(/\w+\.html$/i, '') + 'rxjs'
         },
         packages: {
           'app': {defaultExtension: 'js'},