diff --git a/xcp_d/config.py b/xcp_d/config.py
index 7ac5e7d6a..66e122319 100644
--- a/xcp_d/config.py
+++ b/xcp_d/config.py
@@ -151,7 +151,7 @@
     # Just get so analytics track one hit
     from contextlib import suppress
 
-    from requests import ConnectionError, ReadTimeout
+    from requests import ConnectionError, ReadTimeout  # noqa: A004
     from requests import get as _get_url
 
     with suppress((ConnectionError, ReadTimeout)):
diff --git a/xcp_d/utils/sentry.py b/xcp_d/utils/sentry.py
index 94fce1794..0e46d422f 100644
--- a/xcp_d/utils/sentry.py
+++ b/xcp_d/utils/sentry.py
@@ -92,7 +92,7 @@ def process_crashfile(crashfile):
                 scope.set_extra(k, strv[0])
             else:
                 for i, chunk in enumerate(strv):
-                    scope.set_extra('%s_%02d' % (k, i), chunk)  # noqa:FS001
+                    scope.set_extra(f'{k}_{i:02d}', chunk)  # noqa:FS001
 
         fingerprint = ''
         issue_title = f'{node_name}: {gist}'