diff --git a/config/settings.yml b/config/settings.yml
index 32956bb3..4376c1c7 100644
--- a/config/settings.yml
+++ b/config/settings.yml
@@ -171,7 +171,9 @@ discourse_ai:
     client: true
   ai_embeddings_semantic_related_topics: 5
   ai_embeddings_semantic_related_include_closed_topics: true
-  ai_embeddings_pg_connection_string: ""
+  ai_embeddings_pg_connection_string:
+    default: ""
+    hidden: true
   ai_embeddings_semantic_search_enabled:
     default: false
     client: true