diff --git a/scrapy/spiders/__init__.py b/scrapy/spiders/__init__.py
index 00d7fc708..12b4fba09 100644
--- a/scrapy/spiders/__init__.py
+++ b/scrapy/spiders/__init__.py
@@ -14,7 +14,6 @@ from scrapy.utils.deprecate import method_is_overridden
 
 
 class Spider(object_ref):
-
     """Base class for scrapy spiders. All spiders must inherit from this
     class.
     """