diff --git a/packages/config/index.js b/packages/config/index.js
index f34f48408..f6c847eb6 100644
--- a/packages/config/index.js
+++ b/packages/config/index.js
@@ -29,6 +29,8 @@ function applyDefaultConfig(config) {
       locations: [],
       basePath: '',
       assetPath: '',
+      workerPath: '<assetPath>/sw.js',
+      workerFile: null,
       browsers: '> 1%, last 2 versions, Firefox ESR',
       node: 'current',
       envVars: { HOPS_MODE: 'dynamic' },
diff --git a/packages/spec/config.js b/packages/spec/config.js
index 7ec94eb89..ea86f94c3 100644
--- a/packages/spec/config.js
+++ b/packages/spec/config.js
@@ -34,6 +34,8 @@ describe('config', function() {
       appDir: process.cwd(),
       buildDir: path.resolve('build'),
       cacheDir: path.resolve(path.join('node_modules', '.cache', 'hops')),
+      workerFile: null,
+      workerPath: '/sw.js',
     });
   });