diff --git a/2xswm1bwq8.js b/2xswm1bwq8.js
index f2fd9c1..d56c5e7 100644
--- a/2xswm1bwq8.js
+++ b/2xswm1bwq8.js
@@ -1477,7 +1477,7 @@ GameLib.CustomCode.prototype.stopBlock = function() {
         function (mesh) {
 
             mesh.parentMesh = null;
-            mesh.updateInstance(parentMesh);
+            mesh.updateInstance('parentMesh');
 
             mesh.position.z = 2.5;
             mesh.updateInstance('position');