diff --git a/main/management/commands/donor_import.py b/main/management/commands/donor_import.py
index 97eaca2c..c5cdf3e4 100644
--- a/main/management/commands/donor_import.py
+++ b/main/management/commands/donor_import.py
@@ -105,6 +105,6 @@ def handle(self, *args, **options):
         try:
             _, created = Donor.objects.get_or_create(name=name)
             if created:
-                logger.info(u'Adding donor: {}'.format(name))
+                logger.info('Adding donor: %s', name)
         except DBError as e:
             logger.info(u'Error while adding donor: %s, %s', name, e)
diff --git a/ruff.toml b/ruff.toml
index 1ae0f746..09cc768d 100644
--- a/ruff.toml
+++ b/ruff.toml
@@ -2,6 +2,7 @@ select = [
     "C4",      # flake8-comprehensions
     "E",       # pycodestyle
     "F",       # pyflakes
+    "G",       # flake8-logging-format
 ]
 
 # Never enforce `E501` (line length violations).