diff --git a/debug_toolbar/panels/sql/tracking.py b/debug_toolbar/panels/sql/tracking.py
index 53804195b..69e7ed8e0 100644
--- a/debug_toolbar/panels/sql/tracking.py
+++ b/debug_toolbar/panels/sql/tracking.py
@@ -93,7 +93,7 @@ def _quote_expr(self, element):
             except DjangoUnicodeDecodeError:
                 return repr(element)
         elif isinstance(element, six.binary_type):
-            return '(binary data)'
+            return "(binary data)"
         else:
             return repr(element)
 
diff --git a/tests/panels/test_sql.py b/tests/panels/test_sql.py
index def14e4a2..c1179c62a 100644
--- a/tests/panels/test_sql.py
+++ b/tests/panels/test_sql.py
@@ -113,23 +113,29 @@ def test_param_conversion(self):
             ('["Foo", true, false]', "[10, 1]", '["2017-12-22 16:07:01"]'),
         )
 
-    @unittest.skipIf(connection.vendor in ('sqlite', 'postgresql'),
-                     'Mixing bytestrings and text is not allowed on PostgreSQL and'
-                     'SQLite')
+    @unittest.skipIf(
+        connection.vendor in ("sqlite", "postgresql"),
+        "Mixing bytestrings and text is not allowed on PostgreSQL and SQLite"
+    )
     def test_binary_param_force_text(self):
         self.assertEqual(len(self.panel._queries), 0)
 
         with connection.cursor() as cursor:
-            cursor.execute("SELECT * FROM auth_user WHERE username = %s", [b'\xff'])
+            cursor.execute(
+                "SELECT * FROM auth_user WHERE username = %s",
+                [b'\xff']
+            )
 
         self.assertEqual(len(self.panel._queries), 1)
-        self.assertEqual(self.panel._queries[0][1]['sql'],
-                         "SELECT * FROM auth_user WHERE username = '\ufffd'")
+        self.assertEqual(
+            self.panel._queries[0][1]["sql"],
+            "SELECT * FROM auth_user WHERE username = '\ufffd'"
+        )
 
         self.panel.process_response(self.request, self.response)
         self.panel.generate_stats(self.request, self.response)
 
-    @unittest.skipUnless(connection.vendor != 'sqlite', 'Test invalid for SQLite')
+    @unittest.skipUnless(connection.vendor != "sqlite", "Test invalid for SQLite")
     def test_raw_query_param_conversion(self):
         self.assertEqual(len(self.panel._queries), 0)