diff --git a/src/swRegistration.ts b/src/swRegistration.ts
index 927cba6..a2d0622 100644
--- a/src/swRegistration.ts
+++ b/src/swRegistration.ts
@@ -23,7 +23,7 @@ export function register(config?: Config) {
     }
 
     window.addEventListener('load', () => {
-      const swUrl = `./sw.js`;
+      const swUrl = new URL('sw.js', publicUrl.href).href;
 
       if (isLocalhost) {
         // This is running on localhost. Let's check if a service worker still exists or not.