diff --git a/certbot-apache/certbot_apache/interfaces.py b/certbot-apache/certbot_apache/interfaces.py
index 182252d82..d815826b1 100644
--- a/certbot-apache/certbot_apache/interfaces.py
+++ b/certbot-apache/certbot_apache/interfaces.py
@@ -159,7 +159,7 @@ class CommentNode(ParserNode):
     CommentNode objects should have the following attributes:
 
     # Contains the contents of the comment without the directive notation
-    # (typically # or /* ... */
+    # (typically # or /* ... */).
     comment: str
 
     """