diff --git a/app/views/service_worker/index.js.erb b/app/views/service_worker/index.js.erb
index 70a7699fe..64211e36b 100644
--- a/app/views/service_worker/index.js.erb
+++ b/app/views/service_worker/index.js.erb
@@ -37,7 +37,7 @@
   function createPageStream(request) {
     const stream = new ReadableStream({
       start(controller) {
-        if (!caches.match('/shell_top') || !caches.match('/shell_top')) { //return if shell isn't cached.
+        if (!caches.match('/shell_top') || !caches.match('/shell_bottom')) { //return if shell isn't cached.
           return
         }
 
@@ -140,4 +140,4 @@
       }
     }
   });
-<% end %>
\ No newline at end of file
+<% end %>