diff --git a/public/sw.js b/public/sw.js
index 4d53e2a..56faf1f 100644
--- a/public/sw.js
+++ b/public/sw.js
@@ -61,7 +61,7 @@ self.addEventListener("fetch", event => {
 
 	// Get pattern.gif from generator. Fallback to cache on failure
 	if(origin && url.pathname.endsWith("pattern.gif")) {
-		const pattern = new Request(`${location.origin}/${root}assets/img/pattern.php`);
+		const pattern = new Request(`${location.origin}${root}assets/img/pattern.php`);
 		event.respondWith(
 			fetch(pattern).catch(() => {
 				return caches.match(event.request);