diff --git a/letsencrypt-nginx/letsencrypt_nginx/nginxparser.py b/letsencrypt-nginx/letsencrypt_nginx/nginxparser.py
index 84b54b4db..c9a24aabe 100644
--- a/letsencrypt-nginx/letsencrypt_nginx/nginxparser.py
+++ b/letsencrypt-nginx/letsencrypt_nginx/nginxparser.py
@@ -87,7 +87,7 @@ class RawNginxDumper(object):
     def __str__(self):
         """Return the parsed block as a string."""
         return '\n'.join(self) + '\n'
-    
+
     def as_string(self):
         """Return the parsed block as a string."""
         return str(self)