diff --git a/PVPlantEarthWorks.py b/PVPlantEarthWorks.py
index e135e59..04f1880 100644
--- a/PVPlantEarthWorks.py
+++ b/PVPlantEarthWorks.py
@@ -760,7 +760,7 @@ class EarthWorksTaskPanel:
                             if len(section) > 0:
                                 try:
                                     boundary.add(Part.makePolygon(section))
-                                except:
+                                except Part.OCCError:
                                     pass
                     Part.show(boundary)'''
                     #mesh.smooth("Laplace", 3)