diff --git a/src/kiri/mode/cam/prepare.js b/src/kiri/mode/cam/prepare.js
index 9db0a70e..268ed230 100644
--- a/src/kiri/mode/cam/prepare.js
+++ b/src/kiri/mode/cam/prepare.js
@@ -337,7 +337,7 @@ export function prepEach(widget, settings, print, firstPoint, update) {
         // 1. move to safe z of current point preserving angle
         // 2. move to safe z of new point preserving old angle
         // 3. move to safe z of new point with new angle
-        if (lop !== currentOp && lastPoint) {
+        if (lop && lop !== currentOp && lastPoint) {
             camOut(lastPoint.clone().setZ(zsafe).setA(lastPoint.a), 0);
             camOut(point.clone().setZ(zsafe).setA(lastPoint.a), 0);
             camOut(point.clone().setZ(zsafe), 0);