diff --git a/backend/btrixcloud/storages.py b/backend/btrixcloud/storages.py
index 34955b64a..69a21745e 100644
--- a/backend/btrixcloud/storages.py
+++ b/backend/btrixcloud/storages.py
@@ -597,7 +597,7 @@ def organize_based_on_instance_number(
             for wacz_file in instance_list:
                 wacz_url = wacz_file.path
                 if wacz_url.startswith("/data"):
-                    wacz_url = f"http://host.docker.internal:30870{wacz_url}"
+                    wacz_url = f"http://browsertrix-cloud-frontend.default{wacz_url}"
 
                 with RemoteZip(wacz_url) as remote_zip:
                     log_files: List[ZipInfo] = [
@@ -645,7 +645,7 @@ def stream_page_lines(
         for wacz_file in wacz_files:
             wacz_url = wacz_file.path
             if wacz_url.startswith("/data"):
-                wacz_url = f"http://host.docker.internal:30870{wacz_url}"
+                wacz_url = f"http://browsertrix-cloud-frontend.default{wacz_url}"
 
             with RemoteZip(wacz_url) as remote_zip:
                 page_files: List[ZipInfo] = [