diff --git a/whitebox_neutron_tempest_plugin/tests/scenario/test_ovn_fdb.py b/whitebox_neutron_tempest_plugin/tests/scenario/test_ovn_fdb.py
index 4138ee1..0ede642 100644
--- a/whitebox_neutron_tempest_plugin/tests/scenario/test_ovn_fdb.py
+++ b/whitebox_neutron_tempest_plugin/tests/scenario/test_ovn_fdb.py
@@ -38,7 +38,8 @@ class OvnFdbAgingTest(wb_base.BaseTempestTestCaseOvn):
 
     def _check_mac_in_ovn_sb_fdb(self, mac_address, is_present=True):
         def _check_mac():
-            cmd = '{} list FDB | grep mac'.format(self.sbctl)
+            cmd = ('{} --format=list --bare --columns=mac list FDB; '
+                   'true').format(self.sbctl)
             fdb_list = self.run_on_master_controller(cmd).lower()
             if is_present:
                 return mac_address.lower() in fdb_list