diff --git a/backend/test_observer/external_apis/archive.py b/backend/test_observer/external_apis/archive.py
index 71bc9279..9a4fff93 100644
--- a/backend/test_observer/external_apis/archive.py
+++ b/backend/test_observer/external_apis/archive.py
@@ -46,7 +46,7 @@ def __init__(self, arch: str, series: str, pocket: str, apt_repo: str):
         :pocket: deb pocket ("proposed" or "updates")
         :apt_repo: repo on archive (e.g. main, universe)
         """
-        if arch == "arm":
+        if arch.startswith("arm"):
             archive_url = "ports.ubuntu.com/ubuntu-ports/dists"
         else:
             archive_url = "us.archive.ubuntu.com/ubuntu/dists"