diff --git a/plugins/GCodeReader/GCodeReader.py b/plugins/GCodeReader/GCodeReader.py
index 894783c07d..34ea91a727 100644
--- a/plugins/GCodeReader/GCodeReader.py
+++ b/plugins/GCodeReader/GCodeReader.py
@@ -139,7 +139,7 @@ class GCodeReader(MeshReader):
             path.append([x, y, z, LayerPolygon.MoveCombingType])
         if z_changed:
             if not self._is_layers_in_file:
-                if not self._is_layers_in_file and len(path) > 1 and z > 0:
+                if len(path) > 1 and z > 0:
                     if self._createPolygon(z, path):
                         self._layer += 1
                     path.clear()