diff --git a/README.md b/README.md
index a212f91..46f6c8c 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,7 @@ Schedule the asynchronous exectution of a function by calling `async` from withi
 ```python
 async(func,*args,hook=None,**kwargs)
 ```
+The optional hook function gets the finished task object as its first argument after execution
 
 ### Management commands
 
diff --git a/README.rst b/README.rst
index 3c736d5..69a30b5 100644
--- a/README.rst
+++ b/README.rst
@@ -28,6 +28,9 @@ from within your Django project.
 
     async(func,*args,hook=None,**kwargs)
 
+The optional hook function gets the finished task object as its first
+argument after execution
+
 Management commands
 ~~~~~~~~~~~~~~~~~~~