diff --git a/src/ifcopenshell-python/ifcopenshell/api/pset/remove_pset.py b/src/ifcopenshell-python/ifcopenshell/api/pset/remove_pset.py
index d923630a90..322fb46356 100644
--- a/src/ifcopenshell-python/ifcopenshell/api/pset/remove_pset.py
+++ b/src/ifcopenshell-python/ifcopenshell/api/pset/remove_pset.py
@@ -57,6 +57,7 @@ class Usecase:
                     inverse.RelatedObjects = related_objects
                     should_remove_pset = False
         if should_remove_pset:
+            properties = []  # Predefined psets have no properties
             if self.settings["pset"].is_a("IfcPropertySet"):
                 properties = self.settings["pset"].HasProperties or []
             elif self.settings["pset"].is_a("IfcQuantitySet"):