diff --git a/tailbone/views/roles.py b/tailbone/views/roles.py
index 48ef827c..adac7fb5 100644
--- a/tailbone/views/roles.py
+++ b/tailbone/views/roles.py
@@ -271,7 +271,7 @@ class RolesView(PrincipalMasterView):
                            .options(orm.joinedload(model.Role._permissions))
         roles = []
         for role in all_roles:
-            if has_permission(session, role, permission):
+            if has_permission(session, role, permission, include_guest=False):
                 roles.append(role)
         return roles