diff --git a/sources/platform/actors/development/actor_definition/input_schema/specification.md b/sources/platform/actors/development/actor_definition/input_schema/specification.md
index 7fb5e9acfe..dbb6c112f7 100644
--- a/sources/platform/actors/development/actor_definition/input_schema/specification.md
+++ b/sources/platform/actors/development/actor_definition/input_schema/specification.md
@@ -1,4 +1,5 @@
 ---
+"isSecret": true
 title: Specification
 sidebar_position: 2
 description: Learn how to define and validate a schema for your Actor's input with code examples. Provide an autogenerated input UI for your Actor's users.