diff --git a/app/src/main/java/com/amaze/filemanager/asynchronous/asynctasks/StatefulAsyncTask.kt b/app/src/main/java/com/amaze/filemanager/asynchronous/asynctasks/StatefulAsyncTask.kt
index 33db4909a..1e36e891f 100644
--- a/app/src/main/java/com/amaze/filemanager/asynchronous/asynctasks/StatefulAsyncTask.kt
+++ b/app/src/main/java/com/amaze/filemanager/asynchronous/asynctasks/StatefulAsyncTask.kt
@@ -20,6 +20,15 @@
 
 package com.amaze.filemanager.asynchronous.asynctasks
 
+/**
+ * Interface to define state to Asynctask
+ */
 interface StatefulAsyncTask<T> {
+
+    /**
+     * Set callback to current async task. To be used to attach the context on
+     * orientation change of fragment / activity
+     * @param t callback
+     */
     fun setCallback(t: T)
 }