diff --git a/_config.yml b/_config.yml
index 793ac66..9ca0189 100644
--- a/_config.yml
+++ b/_config.yml
@@ -18,7 +18,8 @@ root: /
 permalink: :year/:month/:day/:title/
 permalink_defaults:
 pretty_urls:
-  trailing_index: true # Set to false to remove trailing index.html from permalinks
+  trailing_index: true # Set to false to remove trailing 'index.html' from permalinks
+  trailing_html: true # Set to false to remove trailing '.html' from permalinks
 
 # Directory
 source_dir: source