diff --git a/impacket/dcerpc/v5/dcom/wmi.py b/impacket/dcerpc/v5/dcom/wmi.py
index 79a1fb1afc..3f24facf1f 100644
--- a/impacket/dcerpc/v5/dcom/wmi.py
+++ b/impacket/dcerpc/v5/dcom/wmi.py
@@ -2613,7 +2613,7 @@ def SpawnInstance(self):
     def createProperties(self, properties):
         for property in properties:
             # Do we have an object property?
-            if properties[property]['type'] == CIM_TYPE_ENUM.CIM_TYPE_OBJECT.value:
+            if properties[property]['type'] == CIM_TYPE_ENUM.CIM_TYPE_OBJECT.value and properties[property]['value'] != None:
                 # Yes.. let's create an Object for it too
                 objRef = OBJREF_CUSTOM()
                 objRef['iid'] = self._iid