Deployment filtering for deployment role objects
diff --git a/planetstack/core/models/site.py b/planetstack/core/models/site.py
index 39eb538..4c7f555 100644
--- a/planetstack/core/models/site.py
+++ b/planetstack/core/models/site.py
@@ -186,6 +186,8 @@
         return Deployment.objects.all()
 
 class DeploymentRole(PlCoreBase):
+    objects = DeploymentLinkManager()
+    deleted_objects = DeploymentLinkDeletionManager()
 
     ROLE_CHOICES = (('admin','Admin'),)
     role = models.CharField(choices=ROLE_CHOICES, unique=True, max_length=30)