diff --git a/config/site_settings.yml b/config/site_settings.yml
index fd487d97a6f..6486b7226f8 100644
--- a/config/site_settings.yml
+++ b/config/site_settings.yml
@@ -495,6 +495,7 @@ posting:
   enable_experimental_markdown_it:
     client: true
     default: false
+    shadowed_by_global: true
   traditional_markdown_linebreaks:
     client: true
     default: false