diff --git a/source4/selftest/tests.py b/source4/selftest/tests.py
index 51ce544a7aa..febdeb2c252 100755
--- a/source4/selftest/tests.py
+++ b/source4/selftest/tests.py
@@ -641,7 +641,7 @@ planpythontestsuite("ad_dc_ntvfs:local", "samba.tests.samba_tool.ou", py3_compat
 planpythontestsuite("ad_dc_ntvfs:local", "samba.tests.samba_tool.computer")
 planpythontestsuite("ad_dc_ntvfs:local", "samba.tests.samba_tool.forest")
 planpythontestsuite("ad_dc_ntvfs:local", "samba.tests.samba_tool.schema")
-planpythontestsuite("ad_dc:local", "samba.tests.samba_tool.ntacl")
+planpythontestsuite("ad_dc:local", "samba.tests.samba_tool.ntacl", py3_compatible=True)
 planpythontestsuite("none", "samba.tests.samba_tool.provision_password_check")
 planpythontestsuite("none", "samba.tests.samba_tool.help")
 planpythontestsuite("ad_dc_ntvfs:local", "samba.tests.samba_tool.passwordsettings")