diff --git a/certbot-nginx/certbot_nginx/nginxparser.py b/certbot-nginx/certbot_nginx/nginxparser.py
index 6f2a3ec70..2cbd0b86a 100644
--- a/certbot-nginx/certbot_nginx/nginxparser.py
+++ b/certbot-nginx/certbot_nginx/nginxparser.py
@@ -43,7 +43,7 @@ class RawNginxParser(object):
     modifier = Literal("=") | Literal("~*") | Literal("~") | Literal("^~")
 
     # rules
-    comment = space + Literal('#') + restOfLine()
+    comment = space + Literal('#') + restOfLine
 
     assignment = space + key + Optional(space + value, default=None) + semicolon
     location_statement = space + Optional(modifier) + Optional(space + location + space)