diff --git a/react-select/index.d.ts b/react-select/index.d.ts
index e59322d0dc..a7c0f2f17a 100644
--- a/react-select/index.d.ts
+++ b/react-select/index.d.ts
@@ -246,6 +246,10 @@ declare namespace ReactSelectClass {
          * onInputChange handler: function (inputValue) {}
          */
         onInputChange?: (inputValue: string) => void;
+        /**
+         * onInputKeyDown handler: function (keyboardEvent) {}
+         */
+        onInputKeyDown?: (event: KeyboardEvent) => void;
         /**
          * fires when the menu is scrolled to the bottom; can be used to paginate options
          */