diff --git a/src/mode/cam/export.js b/src/mode/cam/export.js
index d185e5be..43b8429d 100644
--- a/src/mode/cam/export.js
+++ b/src/mode/cam/export.js
@@ -239,7 +239,9 @@
             append(`; Generated by Kiri:Moto ${KIRI.version}`);
             append(`; ${new Date().toString()}`);
             filterEmit(["; Bed left:{left} right:{right} top:{top} bottom:{bottom}"], consts);
-            append(`; Stock X:${stock.x.round(2)} Y:${stock.y.round(2)} Z:${stock.z.round(2)}`);
+            if (hasStock) {
+                append(`; Stock X:${stock.x.round(2)} Y:${stock.y.round(2)} Z:${stock.z.round(2)}`);
+            }
             append(`; Target: ${settings.filter[settings.mode]}`);
             append("; --- process ---");
             for (let pk in spro) {