diff --git a/_config.yml b/_config.yml
index f4e9b27f..16ed0323 100644
--- a/_config.yml
+++ b/_config.yml
@@ -33,7 +33,9 @@ skip_render:
 new_post_name: :title.md # File name of new posts
 default_layout: post
 titlecase: false # Transform title into titlecase
-external_link: true # Open external links in new tab
+external_link: # Open external links in new tab
+  enable: true
+  field: post
 filename_case: 0
 render_drafts: false
 post_asset_folder: false