diff --git a/Civil/PVPlantTrench.py b/Civil/PVPlantTrench.py
index f329426..ad43de9 100644
--- a/Civil/PVPlantTrench.py
+++ b/Civil/PVPlantTrench.py
@@ -114,7 +114,7 @@ def makeTrench(base=None):
 
     try:
         folder = FreeCAD.ActiveDocument.Trenches
-    except:
+    except AttributeError:
         folder = FreeCAD.ActiveDocument.addObject("App::DocumentObjectGroup", 'Trenches')
         folder.Label = "Trenches"
     folder.addObject(obj)