diff --git a/pelican/tests/test_utils.py b/pelican/tests/test_utils.py
index 634dfbee..3863ba32 100644
--- a/pelican/tests/test_utils.py
+++ b/pelican/tests/test_utils.py
@@ -218,12 +218,18 @@ class TestUtils(LoggedTestCase):
             "∫dx " * 20 + '…')
 
         # Words with invalid or broken HTML references.
-        self.assertEqual(utils.truncate_html_words('&invalid;', 20), '&invalid;')
-        self.assertEqual(utils.truncate_html_words('�', 20), '�')
-        self.assertEqual(utils.truncate_html_words('�', 20), '�')
-        self.assertEqual(utils.truncate_html_words('&mdash', 20), '&mdash')
-        self.assertEqual(utils.truncate_html_words('&#1234', 20), '&#1234')
-        self.assertEqual(utils.truncate_html_words('&#xabc', 20), '&#xabc')
+        self.assertEqual(
+            utils.truncate_html_words('&invalid;', 20), '&invalid;')
+        self.assertEqual(
+            utils.truncate_html_words('�', 20), '�')
+        self.assertEqual(
+            utils.truncate_html_words('�', 20), '�')
+        self.assertEqual(
+            utils.truncate_html_words('&mdash', 20), '&mdash')
+        self.assertEqual(
+            utils.truncate_html_words('&#1234', 20), '&#1234')
+        self.assertEqual(
+            utils.truncate_html_words('&#xabc', 20), '&#xabc')
 
     def test_process_translations(self):
         fr_articles = []
diff --git a/pelican/utils.py b/pelican/utils.py
index 59400699..ab2e4a6e 100644
--- a/pelican/utils.py
+++ b/pelican/utils.py
@@ -552,15 +552,15 @@ class _HTMLWordTruncator(HTMLParser):
 
     def _handle_ref(self, name, char):
         """
-        Called by handle_entityref() or handle_charref() when a ref like 
+        Called by handle_entityref() or handle_charref() when a ref like
         `—`, `—`, or `&#x2014` is found.
-        
+
         The arguments for this method are:
-        
+
         - `name`: the HTML entity name (such as `mdash` or `#8212` or `#x2014`)
         - `char`: the Unicode representation of the ref (such as `—`)
 
-        This method checks whether the entity is considered to be part of a 
+        This method checks whether the entity is considered to be part of a
         word or not and, if not, signals the end of a word.
         """
         # Compute the index of the character right after the ref.