diff --git a/js/kiri-driver-cam.js b/js/kiri-driver-cam.js
index 465ad3f7..6c7a9b0b 100644
--- a/js/kiri-driver-cam.js
+++ b/js/kiri-driver-cam.js
@@ -1540,7 +1540,7 @@ var gs_kiri_cam = exports;
 
         // last layer/move is to zmax
         // injected into the last layer generated
-        addOutput(newOutput[newOutput.length-1], printPoint = lastPoint.clone().setZ(zmax_outer), 0, 0, tool);
+        addOutput(newOutput[newOutput.length-1], printPoint = lastPoint.clone().setZ(zmax_outer), 0, 0, tool.number);
 
         // replace output single flattened layer with all points
         print.output = newOutput;