diff --git a/tests/test_caldav.py b/tests/test_caldav.py
index 281a7b6..601f455 100644
--- a/tests/test_caldav.py
+++ b/tests/test_caldav.py
@@ -494,6 +494,8 @@ def setup_method(self):
         self.principals = []
         for foo in rfc6638_users:
             c = client(**foo)
+            if not c.check_scheduling_support():
+                continue ## ignoring user because server does not support scheduling.
             self.clients.append(c)
             self.principals.append(c.principal())