diff --git a/certbot-nginx/certbot_nginx/_internal/parser.py b/certbot-nginx/certbot_nginx/_internal/parser.py
index d6182870c..72d4d38de 100644
--- a/certbot-nginx/certbot_nginx/_internal/parser.py
+++ b/certbot-nginx/certbot_nginx/_internal/parser.py
@@ -213,7 +213,9 @@ class NginxParser(object):
             except IOError:
                 logger.warning("Could not open file: %s", item)
             except UnicodeDecodeError:
-                logger.warning("Could not read file: %s due to invalid unicode character. Only UTF-8 encoding is supported.", item)
+                logger.warning("Could not read file: %s due to invalid "
+                               "character. Only UTF-8 encoding is "
+                               "supported.", item)
             except pyparsing.ParseException as err:
                 logger.debug("Could not parse file: %s due to %s", item, err)
         return trees
@@ -422,7 +424,8 @@ def _parse_ssl_options(ssl_options):
         except IOError:
             logger.warning("Missing NGINX TLS options file: %s", ssl_options)
         except UnicodeDecodeError:
-            logger.warn("Could not read file: %s due to invalid unicode character. Only UTF-8 encoding is supported.", ssl_options)
+            logger.warn("Could not read file: %s due to invalid character. "
+                        "Only UTF-8 encoding is supported.", ssl_options)
         except pyparsing.ParseBaseException as err:
             logger.debug("Could not parse file: %s due to %s", ssl_options, err)
     return []
diff --git a/certbot-nginx/tests/parser_test.py b/certbot-nginx/tests/parser_test.py
index 232346396..632ea179f 100644
--- a/certbot-nginx/tests/parser_test.py
+++ b/certbot-nginx/tests/parser_test.py
@@ -485,14 +485,16 @@ class NginxParserTest(util.NginxTest):
     def test_valid_unicode_characters(self):
         nparser = parser.NginxParser(self.config_path)
         # pylint: disable=protected-access
-        parsed = nparser._parse_files(nparser.abs_path('unicode_support/valid_unicode_comments.conf'))
+        path = nparser.abs_path('unicode_support/valid_unicode_comments.conf')
+        parsed = nparser._parse_files(path)
         self.assertEqual(['server'], parsed[0][2][0])
         self.assertEqual(['listen', '80'], parsed[0][2][1][3])
 
     def test_invalid_unicode_characters(self):
         nparser = parser.NginxParser(self.config_path)
         # pylint: disable=protected-access
-        parsed = nparser._parse_files(nparser.abs_path('unicode_support/invalid_unicode_comments.conf'))
+        path = nparser.abs_path('unicode_support/invalid_unicode_comments.conf')
+        parsed = nparser._parse_files(path)
         self.assertEqual([], parsed)