diff --git a/test/test_sendmail.py b/test/test_sendmail.py
index 1d84beaf3c..5440f573d0 100644
--- a/test/test_sendmail.py
+++ b/test/test_sendmail.py
@@ -70,7 +70,7 @@ def test_creates_multipart_message(self, dummy_sendmail):
 
     def test_can_handle_html(self, dummy_sendmail):
         message = dummy_sendmail._create_message_attachments("from", "to", "subject", "text", [],
-                                                         message_html="html")
+                                                             message_html="html")
         assert len(message.get_payload()) == 2
         assert message.get_payload()[0].get_payload() == "text"
         assert message.get_payload()[0].get_content_type() == "text/plain"
@@ -91,7 +91,7 @@ def test_properly_detects_file_types(self, tmp_path, dummy_sendmail, filename, e
         filename = tmp_path / filename
         filename.write_bytes(b"Parsons")
         message = dummy_sendmail._create_message_attachments("from", "to", "subject", "text",
-                                                         [filename])
+                                                             [filename])
         assert len(message.get_payload()) == 2  # text body plus attachment
         assert isinstance(message.get_payload()[1], expected_type)
 
@@ -101,7 +101,7 @@ def test_works_with_buffers(self, dummy_sendmail, buffer):
         if buffer is io.BytesIO:
             value = b"Parsons"
         message = dummy_sendmail._create_message_attachments("from", "to", "subject", "text",
-                                                         [buffer(value)])
+                                                             [buffer(value)])
         assert len(message.get_payload()) == 2  # text body plus attachment
         assert isinstance(message.get_payload()[1], MIMEApplication)