diff --git a/src/blenderbim/blenderbim/bim/module/pset/operator.py b/src/blenderbim/blenderbim/bim/module/pset/operator.py
index cd7b1581e9..0eeab105cf 100644
--- a/src/blenderbim/blenderbim/bim/module/pset/operator.py
+++ b/src/blenderbim/blenderbim/bim/module/pset/operator.py
@@ -150,7 +150,7 @@ class EnablePsetEditing(bpy.types.Operator):
 
     def load_enumerated_value(self, prop_template, data):
         enum_items = [v.wrappedValue for v in prop_template.Enumerators.EnumerationValues]
-        selected_enum_items = data.get(prop_template.Name, [])
+        selected_enum_items = data.get(prop_template.Name, []) or []
 
         prop = self.props.properties.add()
         prop.name = prop_template.Name