diff --git a/tests/unit/email/test_services.py b/tests/unit/email/test_services.py
index cf36e180727a..5619e4141f57 100644
--- a/tests/unit/email/test_services.py
+++ b/tests/unit/email/test_services.py
@@ -347,7 +347,7 @@ def test_last_sent(self, db_session):
         for address in [to, "somebody_else@example.com"]:
             for subject in [subject, "I do not care about this"]:
                 sender.send(
-                    f"Foobar <{ to }>",
+                    f"Foobar <{ address }>",
                     EmailMessage(
                         subject=subject, body_text="This is a plain text body"
                     ),