diff --git a/Sources/Widgets/Widgets3D/PaintWidget/behavior.js b/Sources/Widgets/Widgets3D/PaintWidget/behavior.js
index 4ef751e8a98..b1907d0cc13 100644
--- a/Sources/Widgets/Widgets3D/PaintWidget/behavior.js
+++ b/Sources/Widgets/Widgets3D/PaintWidget/behavior.js
@@ -49,7 +49,7 @@ export default function widgetBehavior(publicAPI, model) {
       model._apiSpecificRenderWindow
     );
 
-    if (!worldCoords.length) {
+    if (!worldCoords?.length) {
       return macro.VOID;
     }