diff --git a/package.json b/package.json
index 2252c82..ce86e72 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-datalist-input",
-  "version": "1.1.22",
+  "version": "1.1.23",
   "description": "This package provides a react component as follows: an input field with a drop down menu to pick a possible option based on the current input.",
   "main": "./lib/DataListInput.js",
   "license": "MIT",
diff --git a/src/DataListInput.jsx b/src/DataListInput.jsx
index 851b3d6..44129f0 100644
--- a/src/DataListInput.jsx
+++ b/src/DataListInput.jsx
@@ -71,7 +71,7 @@ class DataListInput extends React.Component {
             const displayableItems = matchingItems.length 
                 ? matchingItems : items.slice( 0, dropDownLength )
             let index = lastValidItem && !clearInputOnSelect
-                ? indexOfItem( lastValidItem, displayableItems ) : 0;
+                ? this.indexOfItem( lastValidItem, displayableItems ) : 0;
             index = index > 0 ? index : 0;
             this.setState( { visible: true, matchingItems: displayableItems, focusIndex: index, } );
         }