diff --git a/src/authentic2_pratic/models.py b/src/authentic2_pratic/models.py
index f36f498..a7b77ed 100644
--- a/src/authentic2_pratic/models.py
+++ b/src/authentic2_pratic/models.py
@@ -447,7 +447,7 @@ def service_post_save(sender, instance, created, raw, **kwargs):
         return
     utils.sync_saml_provider(instance)
     utils.sync_cas_provider(instance)
-    if getattr(instance, 'is_global'):
+    if getattr(instance, 'is_global', None):
         instance.service_instances.update(service_url=instance.service_url,
                                           metadata_url=instance.metadata_url)