diff --git a/Libraries/Components/TextInput/TextInput.js b/Libraries/Components/TextInput/TextInput.js
index 7a094e3c0..88e6a16bb 100644
--- a/Libraries/Components/TextInput/TextInput.js
+++ b/Libraries/Components/TextInput/TextInput.js
@@ -367,6 +367,8 @@ const TextInput = React.createClass({
     onEndEditing: PropTypes.func,
     /**
      * Callback that is called when the text input selection is changed.
+     * This will be called with
+     * `{ nativeEvent: { selection: { start, end } } }`.
      */
     onSelectionChange: PropTypes.func,
     /**