gistfile1

diff --git a/leadmachine/admin/sites/listadmin.py b/leadmachine/admin/sites/listadmin.py
index cae72e5..435a403 100644
--- a/leadmachine/admin/sites/listadmin.py
+++ b/leadmachine/admin/sites/listadmin.py
@@ -488,7 +488,8 @@ class SourceListAdmin(LeadMachineModelAdmin):
             for f in ['first_name', 'last_name', 'middle_name', 'title', 'suffix', 'external_uid']:
                 val = getattr(item, f, getattr(contact, f))
                 if f in ('first_name', 'last_name', 'middle_name'):
-                    val = val.lower().title()
+                    if val in (val.upper(), val.lower()):
+                        val = val.lower().title()
                 setattr(contact, f, val)
             
             contact_custom_fields = dict(custom_field_mapping).get('Contact')