diff --git a/tests/compatibility_issues.py b/tests/compatibility_issues.py
index bef1b229..f046410b 100644
--- a/tests/compatibility_issues.py
+++ b/tests/compatibility_issues.py
@@ -355,6 +355,7 @@
     'no_freebusy_rfc4791',
     'no_todo_datesearch', ## returns nothing
     'text_search_not_working',
+    'no_relships'
 ]