diff --git a/Hook-Definition.md b/Hook-Definition.md
index 6b8176b..67aa56d 100644
--- a/Hook-Definition.md
+++ b/Hook-Definition.md
@@ -7,10 +7,11 @@ Hooks are defined as JSON objects. Please note that in order to be considered va
  * `execute-command` - specifies the command that should be executed when the hook is triggered
  * `command-working-directory` - specifies the working directory that will be used for the script when it's executed
  * `response-message` - specifies the string that will be returned to the hook initiator
+ * `include-command-output-in-response` - boolean whether webhook should wait for the command to finish and return the output and/or error as a response to the hook initiator
  * `parse-parameters-as-json` - specifies the list of arguments that contain JSON strings. These parameters will be decoded by webhook and you can access them like regular objects in rules and `pass-arguments-to-command`.
  * `pass-arguments-to-command` - specifies the list of arguments that will be passed to the command. Check [Referencing request values page](Referencing-Request-Values) to see how to reference the values from the request. If you want to pass a static string value to your command you can specify it as
 `{ "source": "string", "name": "argumentvalue" }`
  * `trigger-rule` - specifies the rule that will be evaluated in order to determine should the hook be triggered. Check [Hook rules page](Hook-Rules) to see the list of valid rules and their usage
 
 ## Examples
-Check out [Hook examples page](Hook-Examples) for more complex examples of hooks.
+Check out [Hook examples page](Hook-Examples) for more complex examples of hooks.
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