diff --git a/odata/state.py b/odata/state.py
index 2162f0e..45ec04f 100644
--- a/odata/state.py
+++ b/odata/state.py
@@ -259,6 +259,14 @@ def _clean_new_entity(self, entity):
                 else:
                     if value.__odata__.id:
                         insert_data['{0}@odata.bind'.format(prop.name)] = value.__odata__.id
+                        
+                        # Put the foreign key back into the request for compatibility with 
+                        #   systems that don't handle {entity} odata.bind correctly
+                        try:
+                            insert_data[prop.foreign_key] = getattr(value, prop.foreign_key)
+                        except:
+                           pass
+
                     else:
                         insert_data[prop.name] = self._clean_new_entity(value)