diff --git a/src/kiri/mode/cam/driver-fe.js b/src/kiri/mode/cam/driver-fe.js
index 816b1c28..dbb02a0e 100644
--- a/src/kiri/mode/cam/driver-fe.js
+++ b/src/kiri/mode/cam/driver-fe.js
@@ -99,7 +99,7 @@ function cylinderShow(onProgress,onDone){
         }
     }
     //send 
-    kiri.client.send("cam_cylinder_find", { id: widget.id, face }, ({faces,error}) => {
+    api.client.send("cam_cylinder_find", { id: widget.id, face }, ({faces,error}) => {
         if (faces?.length) {
             cyls[face] = faces;
             CAM.cylinder_show(widget);