diff --git a/src/pages/index/index.js b/src/pages/index/index.js
index 2655163..ebd5b9a 100644
--- a/src/pages/index/index.js
+++ b/src/pages/index/index.js
@@ -4,9 +4,12 @@ import ReactDOM from 'react-dom';
 import App from '../../components/App';
 
 import '../../style.css';
-import '../../service-worker';
+import { setupServiceWorker } from '../../service-worker';
 import { setupGA } from '../../analytics';
 
+if (process.env.NODE_ENV === 'production') {
+  setupServiceWorker();
+}
 setupGA();
 
 ReactDOM.render(<App/>, document.getElementById('root'));
diff --git a/src/service-worker.js b/src/service-worker.js
index d195676..c9da17a 100644
--- a/src/service-worker.js
+++ b/src/service-worker.js
@@ -1,11 +1,15 @@
-if ('serviceWorker' in navigator && process.env.NODE_ENV === 'production') {
-  window.addEventListener('load', () => {
-    navigator.serviceWorker.register('/sw.js')
-      .then(registration => {
-        console.log('SW registered:', registration); // eslint-disable-line no-console
-      })
-      .catch(registrationError => {
-        console.log('SW registration failed:', registrationError); // eslint-disable-line no-console
-      });
-  });
-}
+const setupServiceWorker = () => {
+  if ('serviceWorker' in navigator) {
+    window.addEventListener('load', () => {
+      navigator.serviceWorker.register('/sw.js')
+        .then(registration => {
+          console.log('SW registered:', registration); // eslint-disable-line no-console
+        })
+        .catch(registrationError => {
+          console.log('SW registration failed:', registrationError); // eslint-disable-line no-console
+        });
+    });
+  }
+};
+
+export { setupServiceWorker };