diff --git a/src/setupTools.js b/src/setupTools.js
index 2380bbd72..8479a4219 100644
--- a/src/setupTools.js
+++ b/src/setupTools.js
@@ -178,7 +178,7 @@ export default function setupTools(store) {
     { name: 'Brush', mouseButtonMasks: [1] },
     {
       name: 'FreehandMouse',
-      configuration: {
+      props: {
         configuration: {
           getMeasurementLocationCallback: toolLabellingFlowCallback,
         },