diff --git a/certbot-nginx/certbot_nginx/nginxparser.py b/certbot-nginx/certbot_nginx/nginxparser.py
index d1d17493a..272e39bbc 100644
--- a/certbot-nginx/certbot_nginx/nginxparser.py
+++ b/certbot-nginx/certbot_nginx/nginxparser.py
@@ -139,7 +139,7 @@ def dumps(blocks):
     :rtype: str
 
     """
-    return str(RawNginxDumper(blocks))
+    return str(RawNginxDumper(blocks.spaced))
 
 
 def dump(blocks, _file):
diff --git a/certbot-nginx/certbot_nginx/parser.py b/certbot-nginx/certbot_nginx/parser.py
index 18301de0e..f2faadd58 100644
--- a/certbot-nginx/certbot_nginx/parser.py
+++ b/certbot-nginx/certbot_nginx/parser.py
@@ -210,7 +210,7 @@ class NginxParser(object):
 
         """
         for filename in self.parsed:
-            tree = self.parsed[filename].spaced
+            tree = self.parsed[filename]
             if ext:
                 filename = filename + os.path.extsep + ext
             try: