diff --git a/src/slicerWorker.js b/src/slicerWorker.js
index 369e4b3..ff1797e 100644
--- a/src/slicerWorker.js
+++ b/src/slicerWorker.js
@@ -16,7 +16,7 @@ self.addEventListener('message', (event) => {
     case 'SLICE': {
       const { geometry: JSONGeometry, settings } = data;
 
-      const { geometry } = new loader.parse(JSONGeometry.data);
+      const { geometry } = loader.parse(JSONGeometry.data);
 
       const gcode = slice(geometry, settings, onProgress);