diff --git a/src/mode/fdm/slice.js b/src/mode/fdm/slice.js
index 3d8d843c..402976ab 100644
--- a/src/mode/fdm/slice.js
+++ b/src/mode/fdm/slice.js
@@ -388,7 +388,8 @@
                         let poly = add[0];
                         let y = count++ * -nozzleSize;
                         if (-y > bump) {
-                            break;
+                            count--;
+                            // break;
                         }
                         poly.push(poly.last().add({x:0, y, z:0}));
                         poly.push(poly.first().add({x:0, y, z:0}));