diff --git a/js/kiri-print.js b/js/kiri-print.js
index f97bd2aa..bcd8e7ff 100644
--- a/js/kiri-print.js
+++ b/js/kiri-print.js
@@ -385,8 +385,11 @@ var gs_kiri_print = exports;
      */
     function addOutput(array, point, emit, speed, tool) {
         // drop duplicates (usually intruced by FDM bisections)
-        if (lastPoint && point && point.x == lastPoint.x && point.y == lastPoint.y && point.z == lastPoint.z && lastEmit == emit) {
-            return;
+        if (lastPoint && point) {
+            // nested due to uglify confusing browser
+            if (point.x == lastPoint.x && point.y == lastPoint.y && point.z == lastPoint.z && lastEmit == emit) {
+                return;
+            }
         }
         lastPoint = point;
         lastEmit = emit;